First Thing: Maryland declares state of emergency after Baltimore bridge collapse

Rescue operations are under way after at least seven vehicles fell into the water. Plus, UN security council demands immediate ceasefire in Gaza

Good morning.

Maryland is in a state of emergency, the governor, Wes Moore, has announced, after at least seven vehicles fell into a river after a bridge in Baltimore collapsed after being hit by a cargo vessel early on Tuesday.

How many people fell into the water? A spokesperson for the Baltimore city fire department, Kevin Cartwright, said it was too early to know, but labeled the collapse a developing mass-casualty event". The latest updates are on our liveblog.

Why did the US veto? It requested a condemnation of Hamas minutes before the vote, which was resisted. Linda Thomas-Greenfield, the US envoy to the UN, said the US did not agree with everything in the resolution but fully supported some of the critical objectives. You can follow our liveblog here.