Four people were wounded -- two critically -- in a shooting in San Bernardino, police said.
The shooting happened at 7 p.m. in the 2900 block of North Mountain Avenue, said San Bernardino Police Lt. Rich Lawhead.
Police recovered a gun from the scene.
One person was being detained.
There was a large unruly crowd at the scene, San Bernardino police had to call San Bernardino Sheriff's deputies for assistance with the crowd.