Twentynine Palms Marine Base Accident: 20 Injured in Training Exercise

February 12, 2015 Updated: August 1, 2015

At least 20 people were injured in a training exercise at the Marine Corps base at Twentynine Palms, California on Thursday, officials said.

According to NBC, citing fire officials, about two dozen people were injured. Other reports said 20 were hurt.

The nature of the training exercise was not disclosed.

It’s also unclear what exactly happened.

Story developing…