Four treated for smoke inhalation following Omagh arson attack

The PSNI has appealed for information following an arson attack in Omagh, Co Tyrone (Niall Carson/PA)

Four people have been treated for smoke inhalation following an arson attack on a property in Co Tyrone.

Detectives said it is believed that flammable liquid was poured through the letterbox of the house in Omagh on Wednesday.