At least one person is reported dead and several others injured in a series of tornadoes that have torn through the US state of Oklahoma.

The worst damage was caused by a tornado near the town of Shawnee, 35 miles (55km) from Oklahoma City, local media report.

A mobile home park near Shawnee is said to have been levelled to the ground.

Twisters have been reported in other states, including Iowa, Minnesota, Kansas and Illinois.

Storm chasers have filmed tornadoes touching down in Texas and Kansas

The National Weather Service (NWS) warned of a dangerous tornado approaching the city of Wichita, Kansas. It had earlier issued urgent appeals for people in parts of Oklahoma to take cover.

In Oklahoma, local TV stations said at least one person was killed and several others hurt when a trailer park on Highway 102 near Shawnee was hit.

At least four tornadoes ravaged the state on Sunday, part of a storm system that was moving north-east across the Midwestern states and Texas.

The massive storm system prompted the NWS to issue a blunt warning to residents in the affected states.

Meteorologists warn that the extreme weather is expected to continue on Monday.

(Source: BBC)