Police are looking for three thieves, captured on surveillance video, who attacked a woman at the door of her Bronx apartment Monday evening before stealing a cellphone from inside.

The trio entered the building, at Andrews Avenue and West Burnside Avenue in Morris Heights, at 8:30 p.m. and knocked on an apartment door. When a 42-year-old woman answered, one of the robbers punched her and shoved her to the ground before the suspects walked inside, grabbed a cellphone and fled.