Cleanup efforts underway in towns hit hard by deadly twisters [Video]

A tornado outbreak in Oklahoma killed at least four people and left a trail of damage across the state, leveling homes and businesses.

As of Monday, local officials say four people were killed, including a child, and at least 100 others were injured.

At least 22 tornadoes touched down in Oklahoma, the National Weather Service confirms, with the most powerful ones ripping through the towns of Holdenville, Marietta and Sulphur.

Hospitals across the state reported about 100 injuries, including people apparently cut or struck by debris, according to the Oklahoma Department of Emergency Management. A baby was among those killed, Hughes County Emergency Management Director Mike Dockrey told Oklahoma television station KOCO.

A tornado near Holdenville killed two people and damaged or destroyed more than a dozen homes, according to the Hughes County Emergency Medical Service.

In Marietta, Oklahoma, one person was killed along I-35. Marietta is a small town about 55 …