The Portland International Jetport is seen in this 2011 file photo. Credit: Pat Wellenbach | AP

The Portland International Jetport closed for about two hours Thursday morning after a small plane landed without deploying its wheels, officials said.

The twin-engine plane made the hard landing around 10:30 a.m. and the airport closed while work crews cleared and inspected the runway, a city spokeswoman said. It reopened around 12:20.

No one was injured and the cause of the hard landing was unknown around noon, according to city spokeswoman Jessica Grondin. The landing delayed and diverted several flights into and out of Portland.

Plane lands on its belly at Portland Jetport, runways closed

RAW FEED: Officials say a twin-engine plane has landed on its belly at the Portland Jetport. No one was hurt, but all runways are closed.

Posted by WGME CBS 13 News, Portland on Thursday, 12 July 2018

Photographs of the plane on the runway appear to show an aircraft registered to Air New England LLC, according to public records.

The Waterville-based corporation is registered to a Kittery lawyer, according to public records. He did not immediately respond to a request for comment.

Follow BDN Portland on Facebook for the latest news from Greater Portland.