A U.S. Navy SEAL killed in a training accident this week has been identified. NBC's Lester Holt reports.

A Navy SEAL from the elite SEAL TEAM 6 was killed and another SEAL injured Thursday night during a parachute training accident in Marana, Arizona, the military said. Details of the accident are not immediately available.

One SEAL was pronounced dead on arrival at the University of Arizona Hospital after the accident near Pinal Airpark. The second remains hospitalized in stable condition.

The deceased SEAL was identified as Special Warfare Operator Chief Brett D. Shadle, 31, the Naval Special Warfare Command announced. A resident of Elizabethville, Pa., Shadle was assigned to a Naval Special Warfare unit based on the East Coast.

Members of SEAL TEAM 6 carried out the raid that killed Osama Bin Laden. All SEAL teams receive extensive parachute training, which is often required for hostage rescue or anti-terrorist operations.

The name of the second SEALS injured in the training mishap has not been released. He remained in stable condition on Saturday. The incident is under investigation.

NBC News’ Matthew DeLuca contributed to this report.

This story was originally published on