The Long Beach Police Department is looking for a man who sexually assaulted an underage boy in an attack that was captured on surveillance video about two weeks ago.

It happened at the entry to an apartment complex on the 1100 block of East 4th Street on the afternoon of July 31.

Video shows the boy walking up to the gate to enter a key code, at which point the suspect walks up from behind and assaults him.

“The suspect initially followed the victim for several blocks. While following the victim, the suspect propositioned him and then grabbed his lower body,” said Lt. Greg Brown.

The video shows the boy fighting back and punching the suspect before running further inside the apartment complex.

Police describe the attacker as white or Hispanic, between 18 and 25 years old, about 5 feet, 10 inches in height, and with a thin build. He has short- to medium-length hair in a combover style and a mustache, Brown said.

At the time of the attack, he was wearing a blue Dodgers shirt, light colored pants and black sandals. Police say he may have been attending a nearby party before the assault.

Anyone with information about the man wanted for the assault is urged to contact Long Beach Police Department Sex Crimes Detective Monica Moore at 562-570-5514 or Detective William Neal at 562-570-5513. You can also submit an anonymous tip online at lacrimestoppers.org.