A fire at a flat in Omagh is being treated as arson with intent to endanger life.
A wheelie bin was placed against the door and set alight in the Mullaghmore Drive area overnight.
There was damage to the door and smoke damage to the inside of the property. No-one was indoors at the time and there were no reports of any injuries.
Police and fire crews attended the scene at around 2.20am on Saturday.
A police spokesperson said: "We are treating this as arson with intent to endanger life at this time and would appeal to anyone who was in the area at the time and saw what happened, or anyone who has information which may assist our investigation to contact detectives in Omagh on the non emergency number 101.”