BALTIMORE (February 27, 2013)--The deaths of two Navy divers at a test pond are not believed to be connected to a death late last month at the site, a spokesman for the Aberdeen Proving Ground in Maryland said.

Aberdeen spokesman Kelly Luster says the two died during a routine dive training operation Tuesday at the Army post.

The Navy says one was declared dead at the scene and the second died later at a medical facility.

Their names weren’t immediately released.

An engineering technician also died while performing maintenance at the testing pond last month.

Luster said the pond is used for a variety of tests, including shock testing of boat hulls.

The spokesman says investigations are underway into the deaths of all three.