At least 4 killed in Oklahoma tornado outbreak, as threat of severe storms continues from Missouri to Texas | National [Video]

(CNN) — At least four people are dead, including an infant, after a tornado outbreak in Oklahoma overnight, as severe storms threaten more twisters, heavy rain and large hail from Missouri to Texas Sunday.

Multiple large and extremely dangerous tornadoes were reported on the ground simultaneously overnight across parts of Oklahoma, according to the National Weather Service.

Two deaths occurred in Holdenville, and the third near Marietta on I-35, according to Keli Cain, public affairs director for the Oklahoma Department of Emergency Management and Homeland Security.

A fourth death happened in the hard-hit town of Sulphur in Murray County, Oklahoma, Gov. Kevin Stitt said at a Sunday news conference.

“It seems like every business downtown has been destroyed now here in Sulphur,” Stitt said. “It’s definitely the most damage since I’ve been governor that I’ve seen.”

Stitt added around 30 people were injured in Sulphur and their conditions are unknown.

He issued …