With the deadline looming for the terms of a fragile cease-fire between Israel and Hezbollah to be met, an American diplomat on Monday said “much progress” had been made recently.

Israel has warned on Sunday that its ceasefire agreement with Hezbollah could collapse if the Iran-backed group does not withdraw beyond the Litani River, one of the key stipulations of the truce.

A ceasefire between Israel and the Lebanese militant group Hezbollah has held up for over a month, even as its terms seem unlikely to be met by the agreed-upon deadline.