Honolulu • A shooting at a Pearl Harbor naval shipyard in Hawaii left at least one person injured Wednesday, military and hospital officials said.

Joint Base Pearl Harbor-Hickam spokesman Charles Anthony confirmed that there was an active shooting at Pearl Harbor Naval Shipyard. The military tweeted that it began around 2:30 p.m.

Queen's Medical Center spokesman Cedric Yamanaka said the hospital was treating one patient but didn't give details on their condition.

Petty Officer Second Class Lexie Perez, who is helping at the Navy Region Hawaii public affairs office, said she couldn't confirm how many people were injured or whether a shooter has been apprehended.

The base tweeted that the gates and base can be accessed again following a lockdown.

Honolulu Emergency Medical Service spokeswoman Shayne Enright says they treated and transported patients but wouldn't provide more details.

The shipyard repairs, maintains and modernizes the ships and submarines of the U.S. Pacific Fleet, which is headquartered at Pearl Harbor. It's the home port for 10 destroyers and 15 submarines.

The shipyard is across the harbor from the Pearl Harbor National Memorial, which on Saturday will mark the 78th anniversary of the Japanese attack that propelled the U.S. into World War II. More than 2,300 Americans died in the attack on Dec. 7, 1941.