(File photo: VCG)

LOS ANGELES, Dec. 4 (Xinhua) -- A shooting incident took place on Wednesday afternoon in Pearl Harbor Naval Shipyard, injuring at least three people, including two in critical condition.

According to local Hawaii News Now website, those injured are civilians and the gunman killed himself.

The official twitter account of Joint Base Pearl Harbor-Hickam (JBPHH) tweeted that the base has been closed after the incident.

"JBPHH security forces have responded to a reported shooting at the Pearl Harbor Naval Shipyard. The incident occurred at approximately 2:30 p.m. (0030 GMT Thursday). Due to the ongoing security incident, access/gates to #JBPHH are closed. We will update when we have further information," said its official twitter page.