Video from KHOU-TV....Harris County Sheriff's Police say three people were injured in the shooting, and one person is being detained.
From The Houston Chronicle: Three people were injured, one critically, when gunfire erupted Tuesday afternoon at a community college campus in the Houston area. The shooting happened about 12:20 p.m. at the North Harris campus of Lone Star College, about 20 miles north of downtown Houston. Officials say two gunmen appeared to have been involved in the shooting. One of them was taken into custody a short time later.