According to KITV, emergency crews in Honolulu are responding to a downed V-22 Osprey at Bellows Air Force Station on the island of Oahu. Marine officials say the military aircraft had a “hard landing” at around 11 a.m. local time.

21 people, including four crew members, were reportedly on board at the time of the crash. Military sources tell Hawaii News Now that 12 marines have been hospitalized.

[Image via Twitter/@AshleyMoser]