A navy spokesman said the accident occurred while soldiers were clearing unexploded ordnance from a previous exercise. The identities of the soldiers have not been released.

Main gate to Camp Pendleton base. (Source: Wikipedia)

Meanwhile, the investigation into the cause is being urgently conducted.

Earlier in March, seven US Marines were killed when a bomb exploded during a live-fire exercise at Hawthorne Air Force Base in Nevada.

The explosion also injured eight others./.

According to VNA