For the third time in two weeks, a woman has been robbed inside a Bronx apartment building.Police say a 30-year-old woman was robbed inside her apartment building near University Avenue and Strong Street last Saturday. They say a man followed the victim inside her apartment building and threatened her with a box cutter. Authorities describe the suspect as a male in his 30s, who's approximately 5 feet 8 inches. The woman handed over her jewelry and the man fled, police say. The victim was not injured.This incident comes on the heels of two thefts in the Mount Hope section of The Bronx, where women were robbed in the lobbies of their buildings.