WESTMINSTER, Texas (AP) — Late-night tornadoes swept through rural North Texas, killing three people, hospitalizing 10 and destroying at least 26 homes, officials said Wednesday.

An elderly couple were found dead in a destroyed mobile home in the tiny community of Westminster, about 45 miles northeast of Dallas, Collin County Fire Marshal Steve Deffibaugh said. He said a 14-year-old was found dead in a home in neighboring Grayson County.

“It sounded like a regular thunderstorm, then it went crazy,” said Cathy Dotson, who huddled on the floor of her Westminster home with her 13- and 10-year-old grandchildren when the tornado hit about 10:30 p.m. Tuesday. “I could actually feel my house move. I looked outside my window, and all I could see was gray.”

Collin County officials identified the couple as Mary Ellen Newsom, 80, and Paul Harris Newsom, 82.

Christy Adame, who lives a half-mile from the home where the couple died, weathered the tornado in a closet with her husband and two sons. When they emerged, she found her horse barn gone, one of her horses in a tree and a smell of propane so strong that officials wouldn’t let a neighbor shoot his suffering cow, which had been impaled on a two-by-four.

“We realized this was the real thing this time,” Adame said. “This was not just a warning.”

Three people were airlifted to a Dallas hospital, but their conditions weren’t available Wednesday. Six people were treated and released at a McKinney hospital; another was transferred to a third hospital. Dozens of people were treated for minor injuries at the scene.

Officials were going door-to-door to check for other casualties, said Jamie Nicolay of the county’s homeland security and health care services department. Officials were searching along a damage track estimated to be about a half-mile wide and 6 to 7 miles long.

“It is possible we might find more victims,” Deffibaugh said.

Some of the destroyed homes were reduced to bare concrete slabs.

One couple whose roof was torn off left a sheet of paper held down by two rocks that read “Harry and Mary Donaho are fine” and gave their daughter’s phone number. Jeri Tishmack, of nearby Van Alstyne, said she stayed on the phone with her parents throughout the storm as they crouched in the living room between a sofa and a small table.

“It sounded terrifying,” Tishmack said. “All I heard was a really high-pitched sound.”

National Weather Service meteorologist Alan Moller said at least two tornadoes hit. He said the first twister developed just north of Anna, a town of about 6,500 near Westminster, and moved eastward. That storm than dissipated and the second tornado developed.

“I think it was the first tornado that killed three people,” he said. “Then there was a larger tornado after that that probably did extensive damage.”

He said officials were surveying the area to assess the size and intensity of the tornadoes. But Moller estimated the storms could have been at least F2 or F3 category tornadoes, which are capable of producing winds up to 206 miles per hour. That’s strong enough to overturn trains and hurl cars through the air.