Amtrak service between Philadelphia and New York was halted for hours Thursday evening after three family members were fatally struck by a train near Bristol Station in Bucks County, Pennsylvania, officials said.

A father and two of his adult sons were hit by the train, officials said. Service between New York and Philadelphia was temporarily suspended.

A father and outreach coordinator who worked in social services in Bucks County and his two adult sons died when a speeding Amtrak train crashed into them in suburban Pennsylvania Thursday night.