Officers from The Police Service of Northern Ireland were conducting a routine patrol near the Ballycolman Estate when they came under fire.
The incident occurred shortly after 17:00 BST in the Strabane area of County Tyrone.
Three men, all wearing black clothing, approached the passenger side of the moving vehicle.
Each attacker threw an incendiary device at the car during the confrontation.
The Police Service of Northern Ireland confirmed the nature of the attack immediately following the event.
No further details regarding injuries or the status of the officers have been released yet.
The location remains identified as the Ballycolman Estate in Strabane, County Tyrone.
Incident reports are currently being processed by relevant authorities.
The full circumstances surrounding the attack are still being investigated.