The Navy says a second SEAL has died following a training accident in a swimming pool at a base in Virginia.

Lt. David Lloyd tells media outlets that Special Warfare Operator 1st Class Brett Allen Marihugh of Livonia, Michigan, died Sunday.

The 34-year-old Marihugh and 32-year-old Special Warfare Operator 1st Class Seth Cody Lewis of Queens, New York, were found unresponsive on Friday at the bottom of the Combat Swimming Training Facility at Joint Expeditionary Base Little Creek-Fort Story. Lewis died Friday.

The Virginia-Pilot reported that the two men were discovered at the bottom of the pool, which is regularly used by SEALs during training. The report said Lewis was pronounced dead shortly after arriving at the hospital; Marihugh, who had been in critical condition, died after being transferred to Sentara Virginia Beach General.

Lloyd says both sailors were members of Naval Special Warfare Group 2.

An investigation of the incident is continuing.

Marihugh and Lewis both served in the U.S. Marine Corps before they enlisted in the Navy in 2006.

The Associated Press contributed to this report