A train carrying several dozen Republican lawmakers including US House Speaker Paul Ryan collided with a garbage truck on Wednesday in Virginia, killing one person and sending six others, including a congressman, to hospital, officials said.
The White House said no members of Congress were seriously injured, and that President Donald Trump had been briefed on the accident.
At least 300 people, including lawmakers, their families and staff, were aboard the train from Washington bound for a Republican policy retreat in West Virginia.
The truck that was struck was carrying three people, one of whom was killed and another seriously injured, Senator Bill Cassidy, a licensed physician who helped attend to the injured, said on Twitter.
"There is one confirmed fatality and one serious injury. There are no serious injuries among members of Congress or their staff," White House press secretary Sarah Sanders said in a statement.
"Our thoughts and prayers are with everyone that has been affected by this incident."