Authorities say the suspect rides up on his bicycle, gropes his victim and then rides off. A surveillance camera caught the suspect doing just that at Fifth Street and Alamitos Avenue. Police say the suspect is responsible for more than 30 incidents of sexual assaults in Long Beach in 2013.
The most recent incidents occurred on Monday at Fourth Street and Gladys Avenue, and Seventh Street and Redondo Avenue.
Investigators are concerned that this groping behavior will escalate, and the suspect will become more aggressive with time.
The suspect has targeted children as young as 12 years old and women as old as 60.
Police are warning women to be aware of their surroundings and avoid walking alone.
"Don't walk with your earphones in where you can't hear things going on. If you're walking down the street and you see someone on a bike that matches the description coming towards you or riding up from behind you, step off the sidewalk. Step away from them out of arm's reach so that they can ride by," said Sgt. Gail Dennison with Long Beach police.
Many female residents said they were frightened, but some were also angry.
"I'm outraged because women in this town should be able to walk on the streets without any fear of somebody coming up behind them and touching their person. I think it's absolutely outrageous," said Marissa Pinching, a Long Beach resident.
The suspect is described as a white or Hispanic man between 25 and 50 years old, about 5 feet 6 inches to 6 feet tall, weighing between 180 and 200 pounds with gray and black hair.
Police said the suspect description is so broad because the victims' age range is also broad, which results in varied perceptions.