Investigators say a husband and wife have been found shot to death and his adult son was wounded at the couple's South Texas home.

The Wilson County Sheriff's Office says the shootings happened early Thursday at a residence in Stockdale, about 30 miles southeast of San Antonio. The 29-year-old son called for help.

The sheriff's department did not immediately provide information on whether anyone was being sought in the shootings or a possible motive.

Authorities say the son has been transported to a hospital. His name and condition were not immediately available.

Names of the couple haven't been released. Further details were not immediately available.