UPDATE: 3 Injured In Shooting At San Leandro Birthday Party; Hesperian Blvd. Shut Down

SAN LEANDRO (CBS SF) -- Three people were shot and injured in San Leandro outside a birthday party celebration early Thursday morning, and the investigation had blocked Hesperian Blvd. for hours, police said Thursday.

The shooting happened on the 15200 block of Hesperian Blvd. San Leandro police said several hours earlier at about 11 p.m. Wednesday, officers had responded to a loud music complaint and learned a party was being held at a banquet hall at the location.

Officers spoke with the on-site security staff and requested that the music be turned down, police said.

At around 2 a.m., police received multiple 911 calls about a shooting at the same location. An officer a few blocks away on an unrelated call heard the shots and responded immediately, police said.

Arriving officers found a large crowd leaving the banquet hall, but no one would discuss with officers what happened, police said.

More than 30 shell casings from two different ammunition calibers were found around the crime scene and officers learned that three people had been taken to a nearby hospital with gunshot wounds.

None of the victims had injuries that were life-threatening.

Both northbound and southbound lanes of Hesperian were blocked from Thornally Dr. to Springlake Dr. as investigators processed the crime scene, police said.

At least one car at the scene had bullet holes in it and multiple evidence markers littered the sidewalk and the street.

AC Transit said routes 35 and 97 were detouring around the blocked area.

"We are grateful that the victims of this senseless shooting did not sustain significant injuries and urge anyone with information to call and help the police in solving this crime,"  San Leandro Police Capt. Ali Khan said in a press statement.

Anyone with information about the shooting was asked to call Detective Joe Kalsbeek or Det. Joanna Villa at 510-577-3274.

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• San Leandro
• Shooting