Police in Texas say a group of teenagers were trying to break into a home when a resident opened fire and killed two of the youths.

San Marcos Police Chief Howard Williams says the shootings happened shortly before 2 a.m. Friday. He says two 16-year-olds died and a third teenager was seriously wounded.

Another teen was unharmed and arrested in the shootings that were about 30 miles south of Austin.

Authorities declined to release the teenagers' identities but say the two killed were from Luling, about 20 miles from San Marcos.

Williams says police responded to a call of a home invasion and shots fired.

Authorities say the three people who were home at the time were not injured.