The ceasefire in Gaza between Israel and Hamas stretched into a fifth day on Thursday. Humanitarian aid groups are working to surge food and supplies to the war-ravaged territory as Palestinians scour through mountains of rubble.

At least 21 Palestinians were injured, 11 severely, after dozens of Israeli civilians, some of whom were masked, arrived at the area of Al Funduq, in the West Bank, and "instigated riots, set property on fire and caused damage," according to the Israel Defense Forces.

Israel said it will maintain control of the Rafah border crossing between Egypt and the Gaza Strip during the first phase of the ceasefire with Hamas.The truce, now in its fourth day, is supposed to bring calm to war-battered Gaza for at least six weeks and see 33 Hamas-held hostages released in return for hundreds of Palestinians imprisoned by Israel.