An OPP officer is in serious condition after a police cruiser was involved in a collision on a Highway 407 off-ramp.

The off-ramp at Dixie Road has been closed following the crash, which happened shortly before 8:30 a.m. on Monday.

According to the OPP, an OPP Tahoe cruiser was parked on the shoulder of the road and was struck from behind by a 407 service truck.

The cruiser was pushed a short distance.

The officer and the 407 employee have been taken to hospital. Both have suffered serious but not life-threatening injuries.