OWLS HEAD, Maine — A commuter airplane carrying eight passengers had a rough landing Friday morning when the nose gear collapsed.

Knox County Regional Airport Manager Jeffrey Northgraves said the Cape Air plane was coming in from Boston when the incident occurred shortly after 11 a.m.

He estimated the speed of the airplane at less than 100 knots or under 115 miles per hour when the gear collapsed. He said it appeared there was only minor damage to the plane. There were marks left on the runway for about 600 feet.

No one was injured, he said.

The National Transportation Safety Board and the Federal Aviation Administration were notified. The Cessna 402 plane was towed to a hanger at the airport to await an inspection by the FAA, Northgraves said. Michelle Haynes, communications director for Cape Air, said mechanics were already in Owls Head to examine the plane. She said there is no cause determined yet for why the nose gear did not work.

Cape Air sent another plane to handle the afternoon flight from the airport, the airport manager said.

Cape Air is based in Hyannis, Mass.