Rocha Garcia, who represents San Antonio’s District 4, told CNN Monday night that 16 others were taken to the hospital. Three of the migrants found were taken to Methodist Hospital Metropolitan and are in stable condition, according to a spokesperson for Methodist Healthcare.
The San Antonio Mayor’s office tells CNN a news conference is planned for 10 p.m. ET.
High temperatures in the San Antonio area ranged from the high 90s to low 100s on Monday, according to the National Weather Service.
This is a developing story and will be updated as more information becomes available.