Soap icon Anna Karen's neighbours believe the house fire she died in was caused by a lit cigarette.
The EastEnders star, 85, died in the horror blaze as firefighters were called to the scene in Ilford shortly after 10.30pm last night.
She was known for her role as Olive in 70s comedy On The Buses and had played Peggy Mitchell's sister Aunt Sal in the ITV soap.
