Kandahar, Afghanistan ? A land mine killed a Navy SEAL and injured another Thursday during a training mission near the U.S. base in Kandahar, Afghanistan, U.S. officials said.

Chief Petty Officer Matthew J. Bourgeois, 35, of Tallahassee, Fla., died in the 8:30 a.m. accident while his unit was training at the remote site, according to a Defense Department statement. The other SEAL’s injuries were not life-threatening.

Bourgeois, a 14-year Navy and SEAL veteran, left a wife and 7-month-old son, said Lt. Cmdr. Denise Shorey, a spokeswoman at the Little Creek Amphibious Base in Norfolk, Va. She did not identify the other SEAL.

Shorey said the mine had apparently been placed by “the enemy,” meaning Taliban or al-Qaida, but it was unclear when it was planted.

The Taliban and al-Qaida mined and booby-trapped the area around Kandahar before fleeing the city in December following three months of relentless U.S. air strikes and attacks by U.S.-backed Afghan fighters.

Defense Secretary Donald H. Rumsfeld expressed his condolences to Bourgeois’ family.

“This is, we’re reminded almost weekly, a dangerous effort, and I’m certainly enormously grateful to him for his service and to all of the men and women in uniform who voluntarily put their lives at risk for our country,” Rumsfeld told a Pentagon briefing.

Fourteen Americans have been killed in combat or hostile situations since President Bush launched military operations in Afghanistan on Oct. 7.

SEAL teams are Navy special forces. SEAL stands for sea, air and land.