Three people in Pennsylvania are dead after being struck Thursday by a train near Philadelphia. Bristol Borough Police Chief Joe Moors said during a news conference Thursday that three people were killed by an Amtrak train traveling from Boston, Massachusetts, to Richmond, Virginia.

An investigation is underway in Bristol after an Amtrak train struck and killed three people Thursday evening, according to police, media reports and bystanders. Bristol Police Chief Joe Moors said that a sergeant responding to a call for someone on the train tracks was en route when the three were struck and killed by an Acela train.

Amtrak said a train hit three members of the same family on a track. Service between New York and Philadelphia was temporarily suspended.

PHILADELPHIA (WPVI) -- An Amtrak police officer kept a rail conductor on track when he stopped breathing at 30th Street Station. When minutes mattered most, Eddie Alderson jumped into action, doing life-saving CPR until EMS paramedics arrived on the scene.

All trains were halted with no timeline for resuming service after three people came into contact with a train in Pennsylvania, officials said.

An investigation is underway in Bristol Borough, Pennsylvania, after at least one person was struck and killed by an Amtrak train on Thursday.

Philadelphia hiring lifeguards, Street cleaning program underway and more headlines \| Digital Brief 02:37. Service is suspended on Amtrak's Northeast Corridor and SEPTA's Trenton