Two people are dead after an apparent murder-suicide at an Air Force base in Texas, police have said.
At least one person died of gunshot wounds in the incident at Joint Base San Antonio-Lackland.
Bexar County Sheriff's spokesman James Keith said two bodies were found inside a room in a building at the base, and it is believed the shooter is among the two dead, but sheriff's deputies and other law enforcement officers are continuing to search the building and nearby facilities.
Mr Keith said earlier that officers had responded to reports of an active shooter at the base which is the home of US Air Force basic training.
In 2009, Fort Hood, which is about 160 miles from Lackland, was the site of the deadliest shooting at a US military base, when 13 people were killed and 31 injured.