Tourists were spotted taking pictures of huge chunks of ice washing up on a river in northern China.

The video, shot in the city of Hulin in Heilongjiang Province on April 5, shows ice cracking on the frozen Ussuri River and chunks of ice flowing downstream.

According to reports, the huge chunks of ice pushed a boat downstream and broke a light pole.

Since the average temperature is lower than that in the same period last year, the date the frozen river started to melt is around three days later than last year.

The video was provided by local media with permission.

随着天气的转暖，封冻了五个月的中俄界江——乌苏里江虎林段全面开江，并且出现了难得一见武开江。
4月5日，黑龙江省虎林市乌苏里江虎头镇江段，冰面崩裂粉碎，如排山倒海一般。近一米厚的冰块在江面上涌动，气势磅礴场面震撼，这在当地被称作是“武开江”。
武开江场面十分壮观。随着一声巨响，江面上炸开一道裂缝，巨大冰排铺天盖地而来。冰块互相撞击，发出巨大的响声，大大小小的冰块拥挤着，顺流而下。江边的一条海事游码头船从上游被推到了下游，巨大的冰排冲破江堤，将路灯撞断，把渔船推到了岸上，冰排气势磅礴，场面壮观。在乌苏里江边赏冰排美景和冰排合影成为春季旅游的又一亮点，游客们纷纷举起手机，记录下这特有的景观。
今年4月份，我市的平均温度比去年同期低，今年开江期也比去年晚3天左右。由于今年乌苏里江水大，冰层厚，出现了难得一见的武开江，乌苏里江刚刚解冻，大量冰排堆积岸边，我市公安局虎头边境派出所民警在江岸开展巡逻，劝导游客注意安全，防止意外事故发生。（视频由黑龙江台提供）