The Israeli military said it bombed about 20 targets across the Hamas-dominated strip.
The death of the Palestinian teen sparked rioting and helped unleash the conflict under way between Israel and Hamas.
The ceasefire collapsed after rockets from Gaza reached Tel Aviv and Jerusalem and Israel resumed airstrikes in Gaza.
Media reports said the both sides are to sign an agreement on long-term ceasefire before the end of the truce.
There are water shortages not only in shelters for the displaced but across the entire enclave.
The Egyptian mediators are said to be trying to find a formula that will satisfy both Israel and Hamas.
The resolution requested that the commission present a written report to the Human Rights Council.
The truce which began just after midnight was the fruit of days of Egyptian-brokered mediation.
Palestinian negotiators are pressing for an end to the crippling Gaza blockade imposed by Egypt and Israel.
Palestine accepts new ceasefire offer to bring back Israel to negotiating a long-term ceasefire agreement.
“At no stage did we declare its conclusion. The operation will continue until its goal is met,” said Netanyahu.
The pope urged the international community to find “an efficient political solution that can stop these crimes”.
Gaza militants resumed their rocket attacks on Friday on Israel, drawing a wave of retaliatory airstrikes.
After the 72-hour ceasefire, Hamas resumes indiscriminate rocket fire at Israel, tweeted a military official.
The truce began after a surge in cross-border rocket fire into Israel by Hamas.