Navy: 8 injured, 1 seriously, in explosion at N.J. base's boathouse

(CNN) -- Eight people were injured -- one seriously -- in an explosion at a naval weapons station's boathouse in New Jersey Tuesday morning, the U.S. Navy said.

The blast at Naval Weapons Station Earle happened at about 9 a.m. while workers were performing maintenance on a vessel, the Navy said in a news release.

Though all eight were taken to hospitals, none has life-threatening injuries, and by early Tuesday afternoon, one of the eight had been treated and released, the Navy said.

Seven workers suffered minor injuries, mostly from smoke inhalation, the Navy said.

"The situation is stabilized. We are investigating the accident," Navy spokesman Mike Brady said.

Information on what exploded and what caused the blast wasn't immediately available.

The workers' names were not immediately released.

"The damage from the explosion was contained within the boathouse area," the Navy's release said.

Naval Weapons Station Earle, which supplies ordnance to the Navy's Atlantic fleet carrier and other groups, is south of Middletown, New Jersey.