A small aircraft identified as a Cessna 172 crashed into the Hudson River on Monday, according to preliminary information. The condition of those on board was not immediately known.

The plane, a four-seat, single-engine aircraft commonly used for flight training and private travel, is registered to American Airman Inc., a Long Island-based flight school, and carries registration number N1560E.

The aircraft departed from Long Island MacArthur Airport earlier in the day. Data from FlightRadar24 showed the plane’s last recorded position in the Hudson River between the cities of Newburgh and Beacon, approximately 60 miles north of New York City.

The crash site is near New York Stewart International Airport, a commercial and military airport in Orange County.

Officials have not yet confirmed how many people were aboard the aircraft, their condition, or the cause of the crash. Emergency crews initiated a search and rescue operation in the area.