"Petty Officer First Class, David Moshe Ben Shitrit, aged 21... fell during combat in northern Israel," the military said in a statement, adding that he was in the navy and that two others were also wounded. It did not give further details.

A military official told AFP that an initial investigation indicated the soldier was killed "either directly from an Iron Dome interceptor or from falling shrapnel from the interceptor, which accidentally hit a Dvora-class fast patrol boat after intercepting a UAV" fired by Hezbollah.

"The details of the incident are under review," the official said on condition of anonymity as he was not authorised to speak publicly on the issue.

The militant group said it fired a large number of rockets and drones towards Israel on Sunday following Israeli strikes on Lebanon that the military said were pre-emptive.