Iran has ordered that Syria provide Hizbullah with advanced weapons; Israel will do all in its power to stop this transfer of weapons, the Israeli prime minister said.

Prime Minister Benjamin Netanyahu denied reports in the media on Monday of alleged Israeli forces operating in Syria.

U.S. Secretary of State John Kerry, who was to return to the region this week for talks with Israelis and Palestinians, has postponed his visit, Israeli media reported on Monday.

According to Israel HaYom, a newspaper considered close to Prime Minister Benjamin Netanyahu, Kerry had been due to arrive on Tuesday, but put off the visit "to give (Palestinian president Mahmoud Abbas) more time" to decide whether to drop his insistence on a settlement freeze before returning to negotiations.

Israel has been the target of a growing number of cyber attacks from Iran, Hizbullah and Hamas, Prime Minister Benjamin Netanyahu said on Sunday.

"In recent months, we have identified a significant rise in the scope of cyber attacks by Iran which are carried out directly by Iran and its proxies Hizbullah and Hamas," he told a cyber security conference at Tel Aviv University.

Prime Minister Benjamin Netanyahu has spoken to Russia's Vladimir Putin after Moscow offered to bolster the beleaguered U.N. peacekeeping force monitoring the Israeli-Syrian ceasefire line on the Golan Heights, Netanyahu's office said Sunday.

"We discussed issues linked to Syria where the situation is becoming more complex by the day," Netanyahu said in remarks communicated by his office.

Israeli Prime Minister Benjamin Netanyahu on Wednesday stressed that Israel will “exert utmost effort” to prevent the delivery of “advanced arms” to Hizbullah from Syria.

“Israel will continue to exert utmost effort to present the delivery of advances arms to Hizbullah, Hamas and other terrorist groups,” Netanyahu said in a speech at the Israeli Knesset.

Israel's deputy foreign minister on Wednesday accused Palestinian president Mahmoud Abbas of seeking "unilateral" moves to seek statehood at the expense of direct peace talks.

Abbas "is in no hurry to restart negotiations, despite the pressures on him, because he thinks that the unilateral path will get him further and that way he won't have to pay a political price," Zeev Elkin said on public radio.

Russian President Vladimir Putin said Tuesday Moscow had not yet delivered its sophisticated S-300 missiles to the Damascus regime despite hints from Syrian President Bashar Assad that such shipments had already been made.

"The contract was signed several years ago. It has not been realized yet," Putin said at a joint press conference with EU leaders. "We do not want to upset the balance in the region."

Israeli Prime Minister Benjamin Netanyahu on Sunday condemned acts of racism against the country's Arab population after an outcry over an amusement park which segregated Jewish and Arab children.

And he also pledged to bring to justice Israeli extremists behind the wave of so-called "price tag" hate crimes against Palestinians.

Top U.S. diplomat John Kerry spoke by phone with Israeli Prime Minister Benjamin Netanyahu and Palestinian President Mahmoud Abbas about settlements and the Mideast peace process, the State Department said Friday.

The calls -- Thursday with Netanyahu and Friday with Abbas -- come on the heels of a State Department warning directed at Israel that continued settlement activity in east Jerusalem was "counterproductive" to efforts to reach a peace deal with the Palestinians.

Israel's decision to build 1,000 new settler homes in annexed east Jerusalem is "destroying" efforts by Washington's top diplomat to revive the peace process, a Palestinian official said on Thursday.

"We consider the recent decision of the Israeli government to build a thousand homes in east Jerusalem as effectively destroying the efforts of (U.S. Secretary of State) Kerry," top Palestinian negotiator Saeb Erakat told Agence France Presse.