The vehicle apparently came to a stop on the tracks in Mansfield just north of the Rhode Island line, police said. The crash late Sunday killed everyone in the SUV, but none of the passengers and crew on the northbound train were injured.
Hours later, an Amtrak train headed to Springfield, Mass., struck a truck operated by a tree-trimming company in Berlin, Conn., south of Hartford. Authorities said five people, the truck driver and four passengers in the train, had minor injuries.
Amtrak halted Acela and regional rail service between New York and Boston until the damaged train could be removed from the track. Commuter trains headed into Boston from Providence, R.I., and Stoughton, Mass., were also delayed.
"It will take several hours this morning to remove the damaged rail equipment and to make any needed repairs to railroad property," Amtrak said.
The Connecticut crash was also expected to cause delays on the line from New Haven, Conn., to Springfield, said Berlin Fire Chief James Simons. The train engine was derailed by the impact.
A New Britain Transportation bus delivered the train passengers to Hartford and Windsor in Connecticut and Springfield.