Scary moments on Southwest Airlines flight

CHICAGO -- Southwest Airlines says no one was injured after one of its planes aborted a takeoff at Midway International Airport in Chicago due to a mechanical issue.

Airline spokesperson Emily Samuels says emergency responders met the plane Wednesday night and the 143 passengers exited via air stairs and returned to the terminal.

CBS Boston reports that a passenger on board recorded video of the fire, sparks and possible explosion on the right side of the jet.

Chicago Fire Department spokesman Cmdr. Frank Velez tells the Chicago Tribune one of the plane's engines caught fire but the airplane has since been secured. CBS Boston also says there was an engine fire.

Samuels says Southwest is waiting for reports on the incident and she doesn't immediately have further details about what happened. She says the plane will be inspected.

One passenger tweeted a video of the takeoff.

The plane was headed to Logan International Airport in Boston.

"We pulled over and all these fire trucks came over and it was crazy," a woman who was on the plane told CBS Boston.

"I was actually freaking out because I don't like flying that much anyway and then I just saw that go off and I thought it was going to die."

"I'm just happy it happened on the ground," another passenger told WBZ.

Samuels said another plane was to take the passengers to Boston.

CBS Boston tweeted that the second plane arrived at Logan early Thursday.

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• Southwest Airlines