OAKLAND (CBS SF) — A gunman riddled an Oakland College Ave. barber shop with bullets Saturday evening, gravely wounding a customer and sending a barber to the hospital for treatment of his wounds, authorities said.

Oakland police said the shooting took place around 5:50 p.m. Saturday at the Extravagant Grooming Lounge in the 5200 block of College Ave. in the Rockridge district.

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Oakland Police PIO Johnna Watson said upon arrival, officers found the shop riddled with bullets and a gravely injured man.

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The wounded man was in his 20s and a customer at the shop. A second victim, a barber, was also critically injured but able to transport himself to a hospital.

Officers remained at the scene late Saturday evening searching for evidence and reviewing video surveillance footage.

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The motive for the shooting is not known at this time, and the suspect or suspects remain at large.