A Los Angeles Police Department dive team was searching Saturday for a handgun that was likely tossed into the ocean just off Point Fermin Park in San Pedro by a robbery suspect who tumbled down a cliff with a police dog during a chase, authorities said.

"The suspect landed on the rocks below and sustained non-life-threatening injuries," Police Department spokesman Gregory Baek said. "The police dog was not injured."

The incident began at about 1:30 a.m. in the 1000 block of Paseo Del Mar "when a patrol officer heard gunshots and a woman screaming," Baek said.

Responding officers encountered two suspects, both men in their mid-20s. One of the suspects was arrested at the scene without incident, Baek said.

The other pointed a handgun at an officer and attempted to fire. "But his weapon jammed," Baek said. "Then he fled down a path toward the water line." Officers believe he threw his gun into the ocean.The suspect was located later by a canine unit, said Sgt. Danny Contreras of the Police Department Harbor Station said.

"He was trying to hide in a bush about 15 feet above the water," Contreras said. "An assortment of items taken during the robbery - cellphones, cash, wallets, a camera - were returned to four victims, none of whom were harmed."

The suspects were booked on suspicion of robbery and assault with a deadly weapon against a police officer, Contreras said.