Stuttering Gaza ceasefire talks entered a second week on Monday, with meditators seeking to close the gap between Israel and Hamas, as more than 20 people were killed across the Palestinian territory.

As Israel and Hamas move closer to a ceasefire agreement, Israel says it wants to maintain troops in a southern corridor of the Gaza Strip — a condition that could derail the talks.

The U.S. President said Israel “agreed to the necessary conditions to finalize” a 60-day ceasefire, “during which time we will work with all parties to end the war.”