Officials are still trying to determine how many people died when a bus caught fire Friday morning near Dallas.
Authorities believe as many as 24 people were killed, but one official says that number could change.
The bus was carrying nursing home residents fleeing from Hurricane Rita. The company that owns the home says 38 residents and six workers were on the bus.
A spokeswoman at Baylor University Medical Center says the bus was heading to another home. She says the hospital has treated and released four patients.
A doctor at another hospital treating patients says most of the injuries are minor, but that one woman is in critical condition after being treated for smoke inhalation.
Authorities say the bus might have caught fire because of mechanical problems, and that oxygen tanks on board then exploded. The National Transportation Safety Board has sent investigators to the scene.