Three people were killed early Sunday when the car in which they were riding crashed into a tree in Olney, according to Montgomery County Police.

Passenger Spencer Datt, 18, of Derwood, was pronounced dead at the scene. Two other passengers, Haeley N. McGuire, 18, and John Hoover, 20, both from Rockville, were pronounced dead at area hospitals.

A fourth passenger and the driver of the Toyota Corolla, 20-year-old Kevin Coffay of Rockville, were treated at a local hospital for non-life threatening injuries.

The accident occurred about 3:11 a.m. Sunday in the 4700 block of Olney Laytonsville Road. Police said Coffay left the accident scene but was questioned by police three hours later, then taken to the hospital.

Police continue to investigate the incident.