HONOLULU - UPDATE: Exercise Sentry Aloha will resume Thursday December 12 at 8:30 a.m. to 10 a.m. and then again from 2 p.m. to 3:30 p.m.

The Hawaii Air National Guard is conducting an interim safety board to gather data from the incident which will then be passed on to the National Transportation Safety Board. 

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Around 2:25 p.m., a Hawker Hunter jet went down in the ocean after taking off from Honolulu International Airport, ejecting the pilot. 

The Department of Defense reports that the aircraft, that was here for a military exercise, Exercise Sentry Aloha, is now in the waters off Sand Island.

Paramedics treated the 47-year-old pilot, who is in serious condition, and transported him to a nearby trauma center.

There is no word on how many people were on board, or their conditions.

The plane went down about 3.5 miles south of Runway 8R.

All departing planes at HNL were being held as a precaution, but all commercial operations have since resumed.

This story will be updated as details become available.