A second Marine who was hospitalized after an Osprey aircraft made a hard landing in Hawaii during a training exercise died Wednesday, the Pentagon announced.

The Marine’s next of kin has been notified and the identity of the Marine will be withheld until 24 hours after the notification was made.

Two Marines remain hospitalized from the Sunday crash, and are in stable condition, the Pentagon said.

The 15th Marine Expeditionary Unit said the tilt-rotor MV-22 Osprey, which can take off and land like a helicopter but has wings to fly like an airplane, had a "hard-landing mishap" Sunday.

The aircraft can be equipped with radar, lasers and a missile defense system, and each can carry up to 24 Marines.

Ospreys have been deployed in Iraq and Afghanistan.