A US sailor shot two people and wounded a third at the Pearl Harbor Naval Shipyard in Hawaii on Wednesday before committing suicide, said official sources.

The two people killed were Department of Defense civilian employees, while a third civilian was wounded but “in stable condition at (an) area hospital,” the official further said.

BREAKING: Military officials say two victims have died after shooting at Pearl Harbor Naval Shipyard in Hawaii. A third victim is hospitalized in stable condition.

The shooter, identified as a sailor, died from “an apparent self-inflicted gunshot wound.” https://t.co/Nh9SN32ShG pic.twitter.com/Cs0O4sMEqh

— ABC News (@ABC) December 5, 2019

Earlier, a spokesperson for the US said that security forces had responded to reports of a shooting at around 2:30pm local time and that the base was on lockdown for hours.

One witness told local media he was sitting at his computer when he heard shots fired and witnessed three victims on the ground.

The witness, who did not want to be identified, said he then saw the gunman who was seemingly wearing a navy or sailor’s uniform shoot himself in the head.

Local media sources said several civilians were among the gunshot victims.

The shooting reportedly took place near the south entrance to the extending base.