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Medina Ablikim, Mikhail N. Achasov, Patrik Adlarson, Orestis Afedulidis, Xiaocong Ai, Riccardo Aliberti, Antonio Amoroso, Qi An, Yu Bai, Olga Bakina, Ilaria Balossino, Yong Ban, H. -R. Bao, Varvara Batozskaya, Khurelbaatar Begzsuren, Niklaus Berger, Marcin Berlowski, Monica Bertani, Diego Bettoni, Fabrizio Bianchi, E. Bianco, Alberto Bortone, Igor R. Boyko, Roy A. Briere, Anja Brüggemann, H. Cai, Xiao Cai, Alessandro Calcaterra, Guofu Cao, Ning Cao, Serkant Ali Çetin, Jinfan Chang, W. L. Chang, G. R. Che, Gueorgui A. Chelkov, C. Chen, C. H. Chen, Chao Chen, G. Chen, Hesheng Chen, M. L. Chen, S. J. Chen, S. L. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Yuanbo Chen, Y. Q. Chen, Z. J. Chen, Z. Y. Chen, S. K. Choi, Xiaoxuan Chu, Gianluigi Cibinetto, Fabio Cossio, J. J. Cui, Hongliang Dai, J. P. Dai, Alaa Dbeyssi, Remco E. de Boer, Dmitri V. Dedovich, C. Q. Deng, Ziyan Deng, Achim Denig, Igor Denysenko, Marco Giovanni Maria Destefanis, Francesca De Mori, B. Ding, Xiaoxuan Ding, Y. Ding, Y. Ding, J. Dong, Liaoyuan Dong, Mingyi Dong, X. Dong, Mengchuan Du, Shuxian Du, Z. H. Duan, P. Egorov, Y. H. Fan, J. Fang, J. Fang, Shuangshi Fang, W. X. Fang, Y. Fang, Y. Q. Fang, Riccardo Farinelli, Luciano Fava, Florian Feldbauer, Giulietto Felici, C. Q. Feng, Junhua Feng, Y. T. Feng, K. Fischer, Miriam Fritsch, Chengdong Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, Isabella Garzia, Panting Ge, Zhenwu Ge, Cong Geng, Evelina Gersabeck, Alexander Gilman, Klaus Goetzen, L. Gong, Wenxuan Gong, Wolfgang Gradl, Stefano Gramigna, Michela Greco, Minhao Gu, Y. T. Gu, C. Y. Guan, Z. L. Guan, Aiqiang Guo, L. B. Guo, M. J. Guo, Rupan Guo, Yuping Guo, Alexey Guskov, J. Gutierrez, K. L. Han, T. T. Han, Xiqing Hao, Frederick Allan Harris, K. K. He, K. L. He, Fritz-Herbert Heinsius, C. H. Heinz, Yuekun Heng, Christoph Herold, Tobias Holtmann, P. C. Hong, G. Y. Hou, Xiantao Hou, Y. R. Hou, Zhilong Hou, B. Y. Hu, Haiming Hu, J. F. Hu, Tao Hu, Y. Hu, G. S. Huang, K. X. Huang, Linqin Huang, Xingtao Huang, Y. P. Huang, Tahir Hussain, Fabian Hölzken, Nils Hüsken, Nikolai in der Wiesche, Muzaffar Irshad, Joshua Jackson, Shinebayar Janchiv, J. H. Jeong, Quan Ji, Qingping Ji, W. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Zekun Jia, D. Jiang, Houbing Jiang, Peicheng Jiang, S. S. Jiang, T. J. Jiang, Xiaoshan Jiang, Y. Jiang, J. B. Jiao, J. K. Jiao, Zheng Jiao, Shan Jin, Y. Jin, Maoqiang Jing, X. M. Jing, Tord Johansson, Sonia Kabana, Nasser Kalantar-Nayestanaki, Xiaolin Kang, Xiaolin Kang, Myroslav O. Kavatsyuk, Bai-Cian Ke, V. Khachatryan, Alfons Khoukaz, Ryuta Kiuchi, Onur Bugra Kolcu, Bertram Kopf, Meike Küßner, X. Kui, Andrzej Kupsc, Wolfgang Kühn, John Jake Lane, Paul Larin, Lia Lavezzi, T. T. Lei, Zuohong Lei, Hans Heinrich Leithoff, Max Lellmann, Thomas Lenz, C. Li, C. Li, Chunhua Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, Haibo Li, Huijing Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, Ke Li, L. J Li, L. K. Li, Lei Li, M. H. Li, Peirong Li, Q. M. Li, Q. X. Li, R. Li, S. X. Li, T. Li, Weidong Li, Weiguo Li, X. Li, X. H. Li, X. L. Li, Xiaoyu Li, Yangu Li, Z. J. Li, Z. X. Li, C. Liang, H. Liang, H. Liang, Y. F. Liang, Y. T. Liang, Guangrui Liao, L. Z. Liao, Yipu Liao, James Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, Fu-Hu Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, Liangchen Liu, Lu Liu, Meihong Liu, P. L. Liu, Q. Liu, S. B. Liu, Tong Liu, W. K. Liu, Weimin Liu, X. Liu, X. Liu, Y. Liu, Y. Liu, Y. B. Liu, Zhen-An Liu, Z. D. Liu, Zhiqing Liu, Xinchou Lou, F. X. Lu, H. J. Lu, Junguang Lu, X. L. Lu, Y. Lu, Yunpeng Lu, Z. H. Lu, Chenglin Luo, M. X. Luo, Tao Luo, X. L. Luo, Xiao-Rui Lyu, Y. F. Lyu, Fengcai Ma, H. Ma, Hailong Ma, Jun-Li Ma, Lianliang Ma, M. M. Ma, Qiumei Ma, Runqiu Ma, X. T. Ma, Xiaoyan Ma, Y. Ma, Y. M. Ma, Frank E. Maas, Marco Maggiora, Sneha Malde, Alessio Mangoni, Yajun Mao, Zepu Mao, Simonetta Marcello, Z. X. Meng, Johannes Gerhardus Messchendorp, Giulio Mezzadri, H. Miao, T. J. Min, Ryan Edward Mitchell, Xiaohu Mo, B. Moses, Nikolai Yu. Muchnoi, Jan Muskalla, Yury Nefedov, Frank Nerling, Ivan Borisovich Nikolaev, Z. Ning, Shabana Nisar, Q. L. Niu, W. D. Niu, Y. Niu, Stephen L. Olsen, Qun Ouyang, Simone Pacetti, Xiang Pan, Y. Pan, A. Pathak, Piero Patteri, Y. P. Pei, Marc Pelizäus, H. P. Peng, Y. Y. Peng, Klaus Peters, J. L. Ping, Ronggang Ping, S. Plura, Vindhyawasini Prasad, F. Z. Qi, H. Qi, Hongrong Qi, Ming Qi, Tianyu Qi, S. Qian, W. B. Qian, Congfeng Qiao, J. J. Qin, L. Q. Qin, X. S. Qin, Zhonghua Qin, Jinfa Qiu, S. Q. Qu, Z. H. Qu, Christoph Florian Redmer, K. J. Ren, Angelo Rivetti, Manuel Dionisio Da Rocha Rolo, Gang Rong, Christoph Rosner, S. N. Ruan, Nora Salone, Andrei V. Sarantsev, Yasemin Schelhaas, Karin Schönning, Marco Scodeggio, K. Y. Shan, Wei Shan, Xinyu Shan, Jianfeng Shangguan, L. G. Shao, M. Shao, Chengping Shen, Hong-Fei Shen, W. H. Shen, X. Y. Shen, B. A. Shi, Huangchao Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, Rongsheng Shi, S. Y. Shi, X. Shi, J. J. Song, T. Z. Song, Weimin Song, Y. J. Song, Stefano Sosio, Stefano Spataro, Frederic Stieler, Y. J. Su, G. B. Sun, Gongxing Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, Liang Sun, S. S. Sun, T. Sun, Wenyu Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. Q. Sun, Z. T. Sun, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y. Tao, Q. T. Tao, Martin Tat, Jiaxiu Teng, Viktor Thoren, W. H. Tian, Y. Tian, Z. F. Tian, Ismail Uman, Y. Wan, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, D. Y. Wang, F. Wang, H. J. Wang, J. P. Wang, K. Wang, Liangliang Wang, M. Wang, Meng Wang, N. Y. Wang, S. Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. Wang, Weiping Wang, X. Wang, Xiongfei Wang, X. J. Wang, X. L. Wang, X. N. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. L. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, Frederik Weidner, Shuopin Wen, Y. R. Wen, Ulrich Wiedner, Guy Wilkinson, Magnus Wolke, Leonard Wollenberg, C. Wu, Jinfei Wu, Linghui Wu, Lianjin Wu, Xiao Wu, X. H. Wu, Y. Wu, Y. H. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, Benhou Xiang, T. Xiang, D. Xiao, G. Y. Xiao, S. Y. Xiao, Y. L. Xiao, Zhenjun Xiao, Cheng Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, Guofa Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, Wei Xu, W. L. Xu, Xinping Xu, Yingchao Xu, Z. P. Xu, Z. S. Xu, F. Yan, Liang Yan, W. B. Yan, Wencheng Yan, X. Q. Yan, H. J. Yang, H. L. Yang, Hongxun Yang, Tao Yang, Y. Yang, Y. F. Yang, Yongxu Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, Minghan Ye, J. H. Yin, Z. Y. You, Boxiang Yu, Chunxu Yu, G. Yu, J. S. Yu, T. Yu, Xudong Yu, Chang-Zheng Yuan, J. Yuan, L. Yuan, S. C. Yuan, Ye Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, S. H. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, Bolun Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. C. Zhang, H. H. Zhang, H. H. Zhang, H. Q. Zhang, Hongyu Zhang, J. Zhang, J. Zhang, J. J. Zhang, Jielei Zhang, Jingqing Zhang, Jiawei Zhang, J. X. Zhang, Jianyong Zhang, J. Z. Zhang, Jianyu Zhang, L. M. Zhang, Lei Zhang, Peng Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Y. Zhang, Yateng Zhang, Y. H. Zhang, Y. M. Zhang, Yan Zhang, Yao Zhang, Z. D. Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, Z. Y. Zhang, G. Zhao, Jingyi Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, Ming-Gang Zhao, R. P. Zhao, Shujun Zhao, Yubin Zhao, Y. X. Zhao, Zhengguo Zhao, Alexey Zhemchugov, Bo Zheng, Jianping Zheng, Wenjing Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, J. Y. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Yizhuo Zhou, J. Zhu, K. Zhu, Kejun Zhu, L. Zhu, Linxuan Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Zian Zhu, Jiaheng Zou, J. Zu

• Using 7.33~fb−1 of e+e− collision data collected by the BESIII detector at center-of-mass energies in the range of s√=4.128−4.226~GeV, we search for the rare decays D+s→h+(h0)e+e−, where h represents a kaon or pion. By requiring the e+e− invariant mass to be consistent with a ϕ(1020), 0.98<M(e+e−)<1.04 ~GeV/c2, the decay D+s→π+ϕ,ϕ→e+e− is observed with a statistical significance of 7.8σ, and evidence for the decay D+s→ρ+ϕ,ϕ→e+e− is found for the first time with a statistical significance of 4.4σ. The decay branching fractions are measured to be B(D+s→π+ϕ,ϕ→e+e−)=(1.17+0.23−0.21±0.03)×10−5, and B(D+s→ρ+ϕ,ϕ→e+e−)=(2.44+0.67−0.62±0.16)×10−5, where the first uncertainties are statistical and the second systematic. No significant signal for the three four-body decays of D+s→π+π0e+e−, D+s→K+π0e+e−, and D+s→K0Sπ+e+e− is observed. For D+s→π+π0e+e−, the ϕ mass region is vetoed to minimize the long-distance effects. The 90% confidence level upper limits set on the branching fractions of these decays are in the range of (7.0−8.1)×10−5.