The National Weather Service (NWS) confirmed multiple tornado touchdowns on 30 March in the Tulsa, Oklahoma area. A storm system bringing the tornado swept through the area, touching down several times and leaving behind a trail of destruction. At least nine injuries were reported by authorities.

According to The Associated Press, the City of Tulsa announced that several roads were shut down and that police and fire crews were canvassing the city. The Streets and Water Departments were aiding with road barricades and debris removal, the city said. The extent of the damage suffered was not immediately clear.

The city tweeted that there was damage, including downed power lines, north of downtown Tulsa. Tulsa County Sheriff's Deputy Justin Green said there was debris in roadways ad a power pole was down. The tornado was first reported by amateur storm chaser Brandyn Baker, who tweeted the video above under the username @BAK_yn.

Ambulance service provider Oklahoma Emergency Medical Services Authority said that tornado-related calls resulted in nine patient transports. Spokeswoman Laura O'Leary told CNN that all nine patients were taken to hospitals in the greater Tulsa area, with one person in critical condition.

The agency tweeted, "Likely tornado on the ground between 66 and I-44 between Verdigris, Claremore moving ENE. Take cover immediately!" CNN reported that the powerful storm moved east at 25mph and produced hail up to 1.75in in diameter.

The NWS said about 9 million people in parts of Arkansas, Louisiana, Oklahoma and Texas were in an enhanced area of risk on 30 March. The tornado watches are in effect until 3am CT/4am EDT/9am GMT.