Hamas said on Monday it had approved a ceasefire proposal put forward over the weekend. Israeli Prime Minister Benjamin Netanyahu said he could not agree to the proposal - but is willing to negotiate. Meanwhile, the Israeli military is conducting what it called "targeted strikes" against Hamas in eastern Rafah. On Monday morning, Israel urged 100,000 Palestinians to leave eastern Rafah ahead of a "limited" military operation. Also: Russia announces drills involving tactical nuclear weapons near Ukraine, and authorities in South Africa search for survivors trapped in a collapsed building.