Baltimore, Md. – The Francis Scott Key Bridge in Baltimore collapsed early Tuesday after a column was hit by a large container ship, sending vehicles and people into the Patapsco River, authorities said. Baltimore City Fire Chief James Wallace told reporters Tuesday morning the scene was “an active search and rescue.” “We may be looking for upwards of seven individuals, that’s the latest information we have.” He said the search was being conducted on and in the water and on the ship’s deck. He said sonar has detected vehicles in the river. Wallace said at least two people have been rescued from the water — one wasn’t hurt and one was in “very serious” condition. He added that the ship’s crew was still on board. The MidAtlantic Coast Guard told CBS News the 948-foot Singapore-flagged cargo ship Dali had struck the bridge. It was apparently en route from Baltimore to Colombo, Sri Lanka.