A bus rolled over near the Border Patrol checkpoint on I-35 outside Laredo, Texas just before eight o'clock Sunday morning, leaving two people dead.
The bus, marked Los Garcias, was carrying 32 people when it veered over to the right at Mile Marker 29. Two people, a man and a woman, were killed in the crash.
At least one of them is from Houston.
A Texas Department of Public Safety spokesperson the driver of the bus has not been cited.
Investigators are still waiting to talk to people at local hospitals undergoing surgery, and possibly in serious condition.
DPS also says some of the survivors have been flown to San Antonio for further care.