The long-delayed opening of the New Yalu River Bridge comes as the two countries expand trade despite international sanctions imposed on North Korea.

The bridges, used by many commuters in the Ukrainian capital, are the latest target in a broad Russian bombing campaign against infrastructure.

The crash also included 50 cars and resulted in at least one serious injury, fire officials said. There were no fatalities, but multiple people were injured.

Gov. Gavin Newsom of California scrambled up a bridge cable before signing a bill at the top of the south tower.