Armed officers from the Metropolitan Police were scrambled to a house in Havering on Monday afternoon after reports that a woman had been attacked by dogs.
Police say the woman in her 50s died at the scene in Hornchurch, with the XL bullys contained inside a room in the house before being seized by officers.
Paramedics and air ambulance crews have been scrambled to Hornchurch in Havering, London following reports that a woman needed treatment - she was later confirmed to have died at the scene