A 44-year-old woman has been arrested in connection with a petrol bomb attack that left a Derry man fighting for his life.
The PSNI said the woman was detained in the Derry area this afternoon.
"She is currently assisting police with their inquiries," a PSNI spokesman said.
Yesterday a senior officer said they were treating the attack as attempted murder.
The 45-year-old victim suffered up to 35% burns, including injuries to his face and neck.
He was struck by a petrol bomb that was thrown through the living room window of his home at Ben Varden Avenue in the Waterside area of the city on Friday night.
He had to be pulled to safety by two neighbours, who risked their own lives to enter the burning building.
The victim has undergone a series of operations at the Royal Victoria Hospital in Belfast where his condition has been described as serious but stable.
Two youths who used scarves to conceal their identity were noted running away from the scene.