Thousands of displaced Palestinians in southern Gaza have begun to return home, after a ceasefire between Israel and Hamas came into effect. Israel said its forces had pulled back to a redeployment line which had been agreed as part of the US-backed deal. Hamas is now expected to release the remaining Israeli hostages within seventy-two hours. In a televised address, Israel's prime minister Benjamin Netanyahu, said his country's troops would remain in Gaza to keep up pressure on Hamas to disarm. Aid agencies have said the ceasefire marks a "fragile but vital moment of hope", as they plan to ramp up the delivery of humanitarian supplies.