About 150 residents gathered for a prayer service in Brent, north London on Tuesday evening to remember a mother and three of her children who died in a house fire. Nusrat Usman, 43, her daughter Maryam Mikaiel, 15 and sons Musa Usman, eight, and Raees Usman, four, died when their home in Stonebridge went up in flames on Saturday morning. A 13-year-old girl, who has not been named, remains in hospital in a critical condition, while a woman in her 70s has been discharged.