The Israeli military has closed probes into more that 60 allegations of misconduct during its November Gaza campaign, including a strike that killed 12, among them five women and five children.

In a report sent to Agence France Presse, the army said its Military Advocate General had "reviewed the factual findings, as far as they existed, with respect to approximately 65 incidents, and did not find a basis for opening a criminal investigation in those cases."

Top U.S. diplomat John Kerry regretted the resignation of Palestinian prime minister Salam Fayyad and urged Palestinians Sunday to find the right person to take on the tough job and work with the U.S.

Fayyad quit after months of tensions with Palestinian President Mahmoud Abbas, and only days after talks with Kerry who visited Israel and the Palestinian territories last week seeking to map out the contours of a new peace plan.

Turkish Prime Minister Recep Tayyip Erdogan on Sunday announced plans to visit Gaza at the end of May, possibly after a key trip to Washington which brokered a rapprochement between Turkey and Israel last month.

"God willing, we will be in Gaza at the end of May. We will embrace one another there," Erdogan said through a video link with a Turkish aid center in the tiny Palestinian territory, media reported.

Israel reopened a goods crossing into the Gaza Strip on Friday, officials said, after closing it several days earlier in response to rocket fire from the besieged Palestinian enclave.

"Kerem Shalom crossing was reopened this morning," said Guy Inbar, spokesman for the Israeli defense ministry unit responsible for all civilian affairs in the Palestinian territories.

A U.N. humanitarian official said on Wednesday a fresh round of Israeli sanctions on the Gaza Strip was hitting food supplies and would have "serious" effects if continued.

"In response to a deteriorating security situation in and around Gaza... Israel has announced a series of heightened restrictions on the movement of people and goods to and from the Gaza Strip, including closures of the Kerem Shalom crossing," U.N. Humanitarian Coordinator James W Rawley said.

An explosive device blew up near the border in the southern Gaza Strip on Tuesday, damaging an Israeli military vehicle, Palestinian witnesses and the army said.

"For the first since since Operation Pillar of Defense, an IDF (army) vehicle was damaged by an explosion of a concealed device laid by terrorists" in Hamas-controlled Gaza Strip, an army statement said, referring to Israel's eight-day bombardment of the enclave in November.

Turkey has delayed the start of talks this week with Israel over compensation that the Jewish state will pay to victims of a deadly 2010 raid on a Gaza-bound flotilla, the government said.

"The compensation meeting with Israel has been delayed to April 21 or 22," Deputy Prime Minister Bulent Arinc told reporters after a weekly cabinet meeting late Monday.

The United Nations said it will reopen aid distribution centers in Gaza on Tuesday, after a four-day closure in response to the storming of its offices by protesters.

The United Nations relief agency for Palestinian refugees, UNRWA, stopped food deliveries after dozens of Gazans forced their way into its Gaza field office last Thursday.

Hundreds of Palestinians rallied outside a U.N. office in Gaza City on Monday, protesting against its decision to suspend aid to refugees in the besieged enclave, witnesses said.

Protesters held banners that read "We want bread, we don't want games," and chanted "O Muslims and Arabs, see the downtrodden," according to witnesses.

Israel shut a crossing with Gaza after rockets were fired from the Hamas-ruled territory at the Jewish state on the day it commemorated the Holocaust.

The military said it closed the Kerem Shalom terminal Monday. Another crossing would be open for humanitarian cases only, it said.