San Antonio firefighters have pulled people from submerged cars and rescued passengers whose bus was swept away in flood waters from torrential rains.
Officials say numerous roads have been closed because of flash flooding.
The city's transit agency says firefighters on a boat were able to rescue the three bus passengers and driver early Saturday. A spokeswoman says nobody was injured.
As of Saturday morning, the San Antonio Airport had recorded nearly 10 inches of rain in the past eight hours or so.
The National Weather Service says rain continues falling at a rate of 2 inches per hour in several counties.
Emergency crews have responded to dozens of water rescues and are taking boats to a reportedly flooded neighborhood in a San Antonio suburb.
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