Two tornadoes have struck different cities in the US state of Oklahoma, killing two people and injuring at least 29 others.
The first tornado levelled a hotel and tore through a mobile home park near Oklahoma City before a second twister raked a suburb of Tulsa more than 160 kilometres away.
The first tornado touched down in El Reno, about 40km west of Oklahoma City, late on Saturday night. It crossed an interstate and walloped the American Budget Value Inn before ripping through the Skyview Estates trailer park, flipping and levelling homes, Mayor Matt White said at a news conference.
"It's a tragic scene out there," White said, adding later that, "People have absolutely lost everything."
The two people who were killed were in the mobile home park, White said. He did not provide additional details about them.
The 29 people who were injured were taken to hospitals, where some were undergoing surgery. Some of the injuries were deemed critical, he said.
The National Weather Service gave the tornado an EF3 rating, meaning it had wind speeds of 219-266km/h.
The tornado began around 10.28pm on Saturday and lasted for four minutes, investigators say.
The tornado was spawned by a powerful storm system that rolled through the state, the latest in a week of violent storms to hit the flood-weary Plains and Midwest that have been blamed for at least 11 deaths, including the two killed in El Reno.
Early on Sunday, another tornado destroyed several buildings and downed trees and power lines in the Tulsa suburb of Sapulpa, which is 177km northeast of El Reno.
The Sapulpa Police Department said on its Facebook page that it hadn't heard of any deaths and that only a few minor injuries had been reported.
Residents wandered around after sun-up to survey the damage, carefully avoiding fallen utility poles that blocked some streets. Among the buildings that were destroyed was a historic railway building built in the early 1900s that the Farmers Feed Store had been using for storage. A furniture store's warehouse was also destroyed.
In El Reno, emergency crews sifted through the rubble at the trailer park and motel, where the second storey collapsed into a pile of debris strewn about the first floor and parking lot.
Tweety Garrison, 63, told The Associated Press she was in her mobile home with her husband, two young grandchildren and a family friend when she heard the storm coming and immediately hit the ground. Moments later, she heard her neighbour's mobile home slam into hers before it flipped over and landed on her roof.
Garrison said the incident lasted five to 10 minutes.
Her 32-year-old son, Elton Garrison, said he heard the wailing tornado sirens and had just laid down at home about a kilometre away when his phone rang. After a missed call, his mother called back, and delivered a chilling message: "We're trapped."
He said when he arrived at his parents' home, he found it blocked by debris and sitting with another trailer on top of it. He began clearing a path to the home so that he could eventually lift a portion of an outside wall just enough so that all five occupants could slip beneath it and escape.
"My parents were in there and two of my kids, one 9 and the other 12. ... My main emotion was fear," said Elton Garrison, who has lived in El Reno for about 26 years. "I couldn't get them out of there quick enough."
