Goliad County Sheriff Kirby Brumby said Tuesday afternoon that none of the suspected illegal immigrants had been apprehended.
"We're not actively searching for them," Brumby said. "After 24 hours, we'll go out if there is a sighting of one of them. Usually, within about 10 hours, we either capture them or they've been picked up and transported away. Most of them have cell phones and they're able to contact people to come and pick them up."
DPS pulled over the pickup truck at around 12:30 p.m. Monday. The occupants then fled into brush near the San Antonio River. Border patrol and Texas of Criminal Justice officials helped Monday in the search, using horses and prison dogs from Beeville.
The vehicle was reported stolen, according to Brumby.