On Tuesday, the Israeli military said a mortar shell exploded on its side of the frontier in the Golan Heights.

NPR: Israel Says It Will Not Let Gaza Rockets Continue

Seven US Marines have been killed and eight injured after a mortar shell exploded unexpectedly in a training accident in the US state of Nevada.

BBC: Brig Gen Jim Lukeman

Both young men were among seven members of the 2nd Marine Expeditionary Force killed late Monday when a mortar shell exploded in its firing tube during an exercise at Hawthorne Army Depot in Nevada.

NPR: Marines Killed In Training Were Young, Lives Ahead