Houston ? Heavy thunderstorms brought torrential rains, flooding and tornadoes to Southeast Texas on Monday, killing four people, ripping roofs off mobile homes, and trapping rush-hour drivers on flooded, tangled freeways.

A Houston mother and daughter were found dead in a sport utility vehicle in floodwaters at least 8 feet deep in Houston, apparently of drowning, the Harris County Medical Examiners Office said.

Two people died in Brazoria County. One person was found dead in a submerged vehicle and a 54-year-old woman died in a two-vehicle collision on a rain-slicked highway.

As much as 10 inches of rain fell in the Houston-Galveston area overnight.

Parts of interstates 10 and 45 were shut down around Houston, and the University of Houston and several other schools were closed. Twenty bayous overflowed their banks, but county officials said no evacuations were ordered. Some delays were reported at both of Houston’s major airports.

At least three tornados were reported. Damage was reported to mobile homes, houses and power lines, but injuries were minor.