Israel has extended the 12-hour truce by four hours after international powers called on it and Palestinian militants to extend the ceasefire.
A 12-hour truce is in effect after Israel and Palestinian militant groups in Gaza agreed to a UN request amid efforts to secure a long-term ceasefire.
Israel has resumed air strikes on Gaza following Hamas's rejection of an Egyptian-proposed Gaza ceasefire.
Israel will not bow to the Palestinians' demand on the borders of their future state, but will meet their request for the release of some prisoners.
The UN chief has called for an immediate ceasefire in the Gaza Strip and the US Secretary of State has headed to the region with a peace message.
Israeli researchers say they have developed marijuana that can be used to ease the symptoms of some ailments without getting patients high.