The long line at the security check before admission to Hangzhou's West Lake has taken on an amusing air, as police officers and volunteers dressed as cartoon pandas provide assistance and pose for photos.

In the run-up to the G20 Leaders Summit, Hangzhou, the host city in Zhejiang province, has stepped up security checks. At the security check station at Qiwang and Xueshi roads, one of 21 such security stations surrounding West Lake, 8-year-old twin brothers Shen Xin and Shen Li and 7-year-old twin sisters Zhu Yuxi and Zhu Yuyan took photos with Huhu, the 1.9-meter-tall panda policeman character.

The twins made the trip to West Lake to mark the end of their summer vacation.