ANDOVER, N.J. (CBSNewYork/AP) — Authorities say a small plane crashed into a lake near a small airport in northwestern New Jersey, injuring the pilot who freed himself and swam away before a police rowboat plucked him from the water.

The pilot was alone in the single-engine plane when it went down shortly before noon Monday near the Aeroflex-Andover Airport in Sussex County. It ended up in Lake Aeroflex in Newton, which is the state’s deepest natural lake.

The pilot was taking off from the airport when the crash occurred, authorities said. He was taken to a hospital, but his name and further details on his injuries were not disclosed.

The airport is in Kittatinny Valley State Park and is owned by the state’s Forest Fire Service.

The Federal Aviation Administration is investigating.

(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)