MOUNT VERNON, Wash. - An Interstate 5 bridge has collapsed over a river in Washington State, sending vehicles plummeting into the water.
The collapse involved the Skagit River Bridge, about 60 miles north of Seattle.
Both the northbound and southbound lanes fell into the river, Washington State Patrol Trooper Mark Francis said in a post on Twitter.
Photos showed the collapsed bridge and vehicles in the water. A reporter for KXLY4 reported "several cars submerged."
The north end of the bridge collapsed, dropping several vehicles into the water
By 10 p.m. Denver time, everyone had been accounted for, the Everett Herald tweeted.
Two people were taken to local hospitals with injuries.
It was not known what caused the collapse of the bridge, but the state Transportation Department said it was investigating whether an oversize truck may have struck the bridge.
The collapse was reported about 8 p.m. Denver time.
Map showing bridge location:
View I-5 Bridge Collapse in a larger map
The I-5 Skagit River Bridge is a through-truss bridge that was built in 1955, according to the website Bridgehunter.com.
The Columbia newspaper in Vancouver, Wash. reported a 2010 inspection described the Skagit River Bridge as "functionally obsolete," according to a federal report.
The report concluded that its structural evaluation was "somewhat better than minimum adequacy to tolerate being left in place as is."
The Skagit River bridge was given a sufficiency rating of 57.4 out of 100, the newspaper reported.