A train struck a semi-truck in eastern Iowa on Wednesday, killing one person and injuring another, authorities said.
BART officials say they don't believe there was a track issue at the time of the derailment and are now focusing on human error as being a possible cause.
Officials say two lanes of the eastbound Highway 24 are closed as officials remove a BART train that derailed on New Year's morning.
An Amtrak train has partially derailed after it crashed into a water truck on the tracks in California.
The derailed cars were carrying hot asphalt and molten sulfur, officials said.
At least a dozen train cars fell off the tracks, according to video that witness Caitlin Nolan shot.