Three men have been treated for smoke inhalation after a petrol bomb was thrown at a house in Derry.
The device hit the door of the house at Fern Park in Shantallow.
The attack happened at a quarter past eleven last night.
Meanwhile, four cars have been set alight in a series of what the PSNI believe to be related incidents in the .
Bloomfield Park area of Shantallow.
At 11.25 last night, police received a report that a car had been badly damaged in the area.
Two more vehicles were reported damaged at 1.45 this morning, than at around 4'oclock this morning, another car parked at Bloomfield Park was set alight.