A fire official says 11 people were rescued from fast-moving floodwaters in northwest Houston after a private rescue boat capsized.
Cy-Fair Volunteer Fire Department spokesman David Padovan said Tuesday that the people who fell from the boat clung to trees to avoid being carried away by the current.
A Texas Department of Public Safety helicopter provided a floodlight early Tuesday to guide rescuers to the people in the water.
Padovan says it appears the people were being evacuated from their homes in a flooded Houston subdivision and were being taken to dry ground when the boat capsized.
It's not clear what caused the craft to roll.
The rescued people were treated for cuts, abrasions and mild hypothermia.
Harvey has been dumping torrential rain on Texas since Sunday, causing catastrophic flooding across the state and in particular on Houston and the surrounding area.