Fourth Squad detectives said the victim was walking home at 12:35 a.m. on Washington Avenue when he was approached by a suspect, a man with a slim build, about 6-foot, wearing dark pants, a white tank top and a dark mask.
The suspect "jumped on his back causing him to fall on the ground . . . then displayed a dark hand gun and removed an undetermined amount of U.S. currency and a cellphone from the victim's pockets," then ran east on Oak Avenue, police said.
The victim was not injured, police said.