Injuries in US high school shooting, situation 'contained'

A gunman opened fire at a Texas high school today, wounding an as yet unknown number of people before the situation was "contained," officials said.

The incident took place at Santa Fe High School in the city of the same name, located about 50 kilometres southeast of Houston in Galveston County.

"There was someone that walked in with a shotgun and started shooting, and this girl got shot in the leg," an eyewitness identified as Nikki told local television station KTRK.

The suspect was in custody, the school's assistant principal, Cris Richardson, told CNN.

"This morning, an incident occurred at the high school involving an active shooter. The situation is active, but has been contained. There have been confirmed injuries," the Santa Fe school district said in a statement.

"Law enforcement will continue to secure the building and initiate all emergency management protocols to release and move students to another location."