Garda forensic experts have begun examining the scene of an explosion which occurred in Letterkenny during the early hours of Friday morning.
The examination of the scene at Manor Park View began after an army explosive ordnance disposal team established there were no secondary devices in the area.
The device exploded under a dark-coloured Mitsubishi Pajero jeep which was parked on the street outside a house.
Thirteen houses in the cul de sac in the Long Lane area were evacuated following the explosion which residents say occurred at around 3.30am. It was hoped at lunchtime on Friday that residents would soon be able to return to their homes.
Gardaí are appealing for information about the incident and are interested in tracing a silver-coloured car which was seen in the area at the time.