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North Korea and China officially opened the New Yalu River Bridge on Thursday, over a decade after Beijing finished construction.

An opening ceremony took place on the bridge at 10 a.m. local time, according to China’s Xinhua News Agency, with footage showing trucks crossing in both directions.

Photos and videos posted on Chinese social media showed that the bridge was lined with Chinese and North Korean flags, while crowds below the bridge on the Dandong side to watch.

The four-lane road bridge links the Chinese border city of