A trampling incident involving an escalator has injured 16 primary students going to a playground at a mall in Nanjing, Jiangsu.

At around 10 yesterday morning, some 40 to 50 Grade 1 and 2 students from the Yuhuatai Experimental School were going to Happy World at the Rsun Mall as part of their annual autumn outing. As Sina News reports, the kids got onto an escalator to the third floor, but the double glass doors to the playground there were locked. The small platform on the third floor was only three square meters, so with kids coming up the escalator it quickly filled up leading to a pileup and injuries.

Nearly 20 students were on the escalator at the time of the incident. Sixteen were taken to Pukou Hospital, of which five are listed in serious condition and have been transferred to the hospital’s children ward.

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