GOLIAD, Texas - Authorities say a pickup truck has crashed in South Texas, killing 11 people in the vehicle and injuring 12. All 23 passengers were in the same Ford F-250 truck, according to officials.

Louann Presas, a spokeswoman for the Texas Department of Public Safety, says the crash occurred about 7 p.m. CDT Sunday near Berclair when the truck ran off the highway and crashed into some trees. The unincorporated community is about 100 miles southeast of San Antonio.

"The truck left the roadway and struck two very large trees," Texas Department of Public Safety spokesman Gerald Bryant told The San Antonio Express-News.

According to Bryant, a total of 23 people of "a variety of ages," including some children, were in the vehicle. The victims have not yet been identified, he said.

The alleged driver of the truck was ejected but is alive, Bryant said. Six others from inside the cab of the truck were pronounced dead at the scene. Another five victims outside of the pickup also died at the scene, he said.

She says the extent of the injuries to the surviving victims wasn't immediately clear. Crash investigators were still at the scene around 11 p.m. CDT.

A Goliad County sheriff's dispatcher deferred comment to a department spokesperson, who did not immediately return a message left by The Associated Press.