EAST BRIDGEWATER (CBS) – Four teens were killed and a fifth was injured after a car crashed into a tree in East Bridgewater Saturday afternoon.

Plymouth County District Attorney Tim Cruz says five males in their “high teens” were in the car that crashed at 558 West Street at about 4:30 pm.

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Cruz said three of the young men were pronounced dead at the scene and a fourth died at Brockton Hospital.

4 teens were killed and another was injured when a car crashed into a tree in East Bridgewater (WBZ-TV)

Another victim was taken to a Boston hospital where he is being treated. The extent of his injuries are unknown.

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Bystanders tell WBZ it appears speed might have played a role. Investigators could be seen combing the area for evidence and examining the overturned vehicle before it was towed away.

“Speed, weather and other factors will be looked at to make a determination as to what happened as best as we can based on the physical evidence that has been left,” Cruz said.

Four teens killed in East Bridgewater crash (WBZ-TV)

The teens involved in the crash were not from East Bridgewater. Police are in the process of notifying the victims’ families.

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“This is a tragic, tragic situation and we hope that any and all young drivers that might be out there for any reasons this time of the year, this festive time of the year, that everybody is careful, and goes slow and remembers that their parents love them and when they tell them to please go slow, to do that,” Cruz said.