OMAHA, Nebraska (AP) — A tornado ripped through the suburbs of Omaha, Nebraska, Friday afternoon, damaging hundreds of homes and other buildings as the twister tore through miles of farmland and residential areas. Injuries were reported, but it’s not yet clear if anyone was killed by the storm.

Several tornadoes were reported in Nebraska, but the most destructive storm moved from a mostly rural area into suburbs northwest of Omaha, a city of 485,000 people.

Photos on social media showed heavily damaged homes and fallen trees. Video showed homes in a rural area near Omaha with their roofs stripped of shingles. Police blocked off roads in the area.

Hundreds of homes were damaged in Omaha, most of them in the Elkhorn neighborhood on the west side of the city, police Lt. Neal Bonacci said.

Police and firefighters are currently going door to door and helping the trapped people.

“We are receiving emergency calls from people lying in rubble in their basements,” he said. “We are working as quickly as possible to help anyone who needs help.”

He said that so far the injuries have been minor and that he is not aware of any damage to businesses.

“Many trees have fallen down. The houses are missing their roofs. You can clearly see the path of the tornado,” said Bonacci.

In one part of Elkhorn, dozens of newly built, large homes were damaged. At least six were destroyed, one was razed to the ground, and others had the top half demolished.

Dozens of emergency vehicles were in use.

Dhaval Naik, who works with the man whose home was destroyed, said three people, including a child, were in the basement when the tornado struck and were able to safely exit the house.

A video from KETV-TV showed a woman being carried on a stretcher from a destroyed house in Blair, a city north of Omaha.

Another tornado struck an area on the western edge of Omaha, passing directly through parts of Eppley Airfield, the city’s airport. Authorities closed the airport to flight operations and assessed possible damage in the area, said Steve McCoy, chief strategy officer for the Omaha Airport Authority.

“We have people in the terminal who are in shelters right now, but the airport is currently closed,” he said, adding that he was not aware of any injuries. Flight delays are likely, he said.

After passing the airport, the tornado crossed the Missouri River and entered Iowa north of Council Bluffs.

According to Katrina Sperl, spokeswoman for the Nebraska Emergency Management Agency, the damage is only now being reported. Taylor Wilson, spokeswoman for the University of Nebraska Medical Center, said they have not seen any injuries so far.

Before the tornado reached the Omaha area, three industrial plant workers were injured Friday afternoon when a tornado struck an industrial plant in Lancaster County, sheriff’s officials said in a damage update.

The building northeast of the state capital of Lincoln collapsed, leaving about 70 employees inside and several people trapped, sheriff’s officials said. Everyone was evacuated and three people suffered injuries that were not life-threatening, authorities said.

Sheriff’s officials said they also received reports of a train overturning near Waverly, also in Lancaster County.

The Omaha Public Power District reported that nearly 10,000 customers in the Omaha area were without power.

Daniel Fienhold, manager of the Pink Poodle Steakhouse in Crescent, Iowa, said he was outside with his daughter and restaurant employees monitoring the weather. He said “it looked like a pretty big tornado was forming” northeast of the city.

“It started to rain, then it started to hail, and then all the clouds started to swirl and merge, and when the wind picked up, I went into the basement, but we never saw it,” Fienhold said.

The weather service also issued tornado warnings for parts of Iowa, Kansas, Missouri, Oklahoma and Texas. And meteorologists warned that heavy hail and destructive wind gusts were possible.

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Hollingsworth reported from Mission, Kansas. Associated Press writers Margery A. Beck in Omaha, Jack Dura in Bismarck, North Dakota, and Jeff Martin in Atlanta contributed to this report.