Senior Israeli opposition figure Benny Gantz warned "time is running out" for a deal that would restore calm on Israel's northern border with Lebanon, as the former war cabinet member met US envoy Amos Hochstein.

"I emphasized my commitment to removing the threat Hezbollah poses to the citizens of northern Israel, regardless of developments on the war in Gaza, and will support any responsible and effective political or military decision on the matter from outside the government," Gantz wrote on 'X' platform.

He called for "an internationally mediated arrangement" on the country's northern border.