Sutherland Springs, Texas: The suspect in Sunday's Texas church mass shooting, Devin P Kelley, was a former member of the US military.

Air Force spokeswoman Ann Stefanek says records confirm Kelley served in Logistics Readiness at Holloman Air Force Base in New Mexico from 2010 until his discharge.

Officers man a barricade near the First Baptist Church of Sutherland Springs. Credit:AP

The Pentagon has confirmed Kelley was an airman "at one point".

Kelley was court-martialed in 2012 for two counts alleging assault on his spouse and assault on their child, Stefanek told the Los Angeles Times.