Follow CBSPHILLY Facebook  | Twitter

EAST WHITELAND TOWNSHIP, Pa. (CBS) — An investigation is underway after two people were killed when a dump truck crushed an SUV on Route 202 in East Whiteland Township, Chester County on Wednesday morning. Three others were injured in the crash, one of them critically.

The crash happened on the ramp from southbound Route 202 to westbound Route 30 Bypass.

Police say the collision caused a dump truck to tilt and land on the roof of an SUV that had five passengers inside. Chopper 3 was over the scene where the SUV could be seen wedged under the truck.

A crane was used to move the dump truck off the SUV.

(credit: CBS3)

Traffic on Route 202 was snarled as authorities spent the day trying to piece together what happened.

“We do have our patrol unit up there, we have crash reconstruction up there,” said Pennsylvania State Trooper Kelly MacIntyre.

The dump truck appears to be owned by Carl E. Killian dump Truck services. Eyewitness News reached out to the company but our call was not returned.

Authorities say they need help with the investigation.

“We’re asking anybody who witnessed the crash to come forward,” said MacIntyre.

The five passengers inside the car were a group of family and friends.

One of the injured victims was flown to Jefferson, one remains in critical condition at Paoli Hospital, and a third victim suffered moderate injuries.

The dump truck driver was not injured in the crash and is cooperating with police.