Strong thunderstorms that included a small tornado caused scattered damage and power outages in parts of Oklahoma early Monday.

No injuries were reported.

The National Weather Service posted severe thunderstorm watches and warnings during the day for parts of Oklahoma, Kansas and Missouri.

The 2 a.m. twister in northern Oklahoma County blew the roof off a house, knocked down utilities and damaging other buildings. Weather service meteorologist Rick Smith said an investigation showed the damage was caused by a tornado that didn't last very long.

Several roads in northwest Oklahoma County were closed by high water. Pawhuska in far northern Oklahoma received 3.88 inches of rain.

Oklahoma Gas & Electric says several thousand customers were blacked out and dozens of utility poles were toppled by high wind.

Elsewhere, the weather service said it had one confirmed tornado sighting during the day Monday in southwest Missouri's Lawrence County, but emergency officials said the only damage was to a barn and utility poles.

A storm in northwest Louisiana on Sunday afternoon damaged a mobile home park at the town of Provencal. Authorities said two people were injured.

Also on Sunday, one man drowned in southeastern Texas when an overflowing creek swept a car off a highway near San Augustine, officials said. The weather service had 10 to 14 inches of rain fell on the area over a two-day period.