Hamas police on Saturday dispersed a protest in the Gaza town of Rafah by Salafist women to demand the release of members of the hardline Islamist movement, an Agence France Presse correspondent said.

Witnesses said the women, who numbered around 30, were veiled and accompanied by children, carried a banner which read: "Where are human rights organizations when our children are arrested?"

The United Nations is to provide financial support to thousands of Gaza families affected by last year's conflict with Israel thanks to a Saudi donation of nearly $16 million, it said on Wednesday.

"Over 7,000 refugee families in Gaza will receive financial support from UNRWA to repair and reconstruct homes damaged during the November conflict," the Palestinian refugee agency said in a statement.

Defense Minister Moshe Yaalon warned on Wednesday that Israel would respond to any attacks on its territory and not allow its people to come under fire "in any form.”

His warning was issued after militants in Gaza fired a rocket at southern Israel, and as a Syrian mortar shell and small arms fire hit the Israeli-occupied sector of the Golan Heights.

Gaza militants fired a rocket into southern Israel on Tuesday, after the death in custody of a Palestinian who suffered from cancer, Israeli police said.

"There was a rocket that was fired," police spokesman Micky Rosenfeld told Agence France Presse. "It landed in an open area," he said, adding there were no immediate reports of casualties or property damage.

Gaza's Hamas prime minister Ismail Haniya headed to Cairo on Saturday to discuss his Islamist movement's complaints about Israeli compliance with an Egyptian-brokered truce.

Hamas spokesman Taher al-Nunu said Haniya would be discussing "Israeli violations of the truce," which ended eight days of deadly violence in and around the Gaza Strip last November.

Arab Israelis and Palestinians rallied on Saturday, some clashing with Israeli forces, to commemorate Land Day, marking the 1976 killing of six Arab Israelis protesting plans to confiscate Arab land.

Thousands marched from the center of the northern Israeli town Sakhnin to the central event at the memorial site dedicated to the six, killed by Israeli forces during mass protests against plans to confiscate Arab land in the Galilee region.

Israel on Thursday fully reopened its border crossings with the Gaza Strip that were closed following militant rocket fire during President Barack Obama's visit to the region last week, the military said.

Hours before the U.S. leader visited the West Bank, Palestinian militants fired two rockets from Gaza into a southern Israeli city, causing damage but no injuries. The attack prompted Israel to close its only border crossing for commercial goods with the coastal territory, and to restrict its only civilian crossing to humanitarian cases only. It also limited the stretch of the sea where Gaza fishermen were allowed to fish.

A hardline Islamist group claimed a rocket attack against southern Israel on Thursday, in a statement that condemned a historic visit by U.S. President Barack Obama to the region.

In a statement headlined "The demolition of Sderot by rocket bombardment in reaction to the visit of the dog Obama," the Salafist Aknaf Bayt al-Maqdis group said it was responsible for an attack launched from Gaza.

Two rockets fired by militants in the Hamas-run Gaza Strip on Thursday hit southern Israel as U.S. President Barack Obama was visiting the Jewish state, police said.

"One exploded in the back yard of a house in Sderot, causing damage, and the second landed in a field," police spokesman Micky Rosenfeld told Agence France Presse, referring to a town very close to the Gaza border, which was visited by Obama on a previous trip in 2008 when he was a senator.

Israel's sole crossing for goods traffic into the Gaza Strip remained shut on Monday, 24-hours after Israel said it would end a week-long closure.

Israel said the holdup was because of attempts by the strip's militant Hamas rulers to introduce procedural changes and divert customs revenues earmarked for their rivals, the West Bank-based Palestinian Authority.