Israeli warplanes mounted an attack on a Syrian military base this week, according to an American official cited by US media.
There may be a ceasefire on the surface at the Gaza border, but for the Israeli army the threats can come from underground.
Israel has admitted it fired two missiles in the Mediterranean. It initially denied any knowledge of missiles being fired.
Israel has freed 26 Palestinian prisoners as part of a deal that set in motion the current Israeli-Palestinian peace talks.
The decision to release the 26 has triggered anguish and anger in Israel, where many view the men as terrorists who have committed terrible crimes against Israelis.
But there were celebrations on the West Bank and the Gaza Strip, where the prisoners are seen as heroes who fought for independence, and were received by their families and Palestinian leaders.
The release was part of an agreement brokered by US Secretary of State John Kerry that brought Israel and the Palestinians back to the table for peace talks that had been paralysed since 2008.
Israeli Prime Minister Benjamin Netanyahu's official Twitter account briefly followed an Iranian sex site, The Times of Israel reports.
At 1am on Sunday morning the official account followed some 90 users on the social media website, many of them Israeli embassies or government figures, but one was a site which described itself as "the first library of hot sex books [in the] Persian language."
Seven hours after following the site, which only had 15 followers at that time, Netanyahu's official account unsubscribed to the Iranian sex site.
The Prime Minister's Office spokesman Mark Regev told the newspaper that his office had nothing to do with the incident.
The Likud Central Committee, who runs Netanyahu's account, said following the site was a "malfunction" that was being investigated.
A recent survey reveals that the majority of Israeli's agree with their prime minister Benjamin Netanyahu's when he called Iranian PM Rouhani 'a wolf in sheep's clothing'.
ITV News, Middle East correspondent Geraint Vincent reports on Netanyahu's warning to the world, and how the majority of Israeli's back their PM's view that Rouhani is playing the 'charm offensive'.
Israel's Prime Minister has branded the Iranian leader Rouhani "a wolf in sheep's clothing." Comparing Hassan Rouhani to his predecessor Mahmood Ahmadinejad, Benjamin Netanyahu said Ahmadinejad was "a wolf in wolf's clothing". While Rouhani "is a wolf in sheep's clothing."
Addressing the UN, Netanyahu claimed that Rouhani's recent "charm offensive" is a ruse to get rid of biting sanctions and that Rouhani masterminded strategy to advance Iran's nuclear weapons program.
Israel, he said, will not allow Iran to acquire nuclear weapons and is ready to stand alone in defending against Iran's nuclear ambitions.
Benjamin Netanyahu branded the Iranian President's UN speech "cynical" and said that Iran was buying time to develop nuclear weapons capability.
"It was a cynical speech full of hypocrisy," Netanyahu said in a statement.
"It had no practical suggestion to stop Iran's military nuclear programme and no commitment to fulfil U.N. Security Council decisions. That exactly is the Iranian plan, to talk and buy time in order to advance Iran's capability to obtain nuclear weapons."
Iran denies it is trying to build nuclear weapons and says its programme is for peaceful purposes.
Israeli advisers are helping Kenya with its "negotiating strategy" in the Nairobi mall hostage situation, an Israeli security sources has told Reuters.
Secretary of State John Kerry has assured Israel that a US-Russian deal to remove Syria's chemical weapons will be effective, addressing concerns that a lack of resolve would embolden Iran.
"We cannot have hollow words in the conduct of international affairs, because that affects all other issues, whether Iran or North Korea or others," Kerry said after talks with Israeli Prime Minister Benjamin Netanyahu.
Kerry briefed Netanyahu on what he called "the most far-reaching chemical weapons removal ever", after the Israeli leader said the deal would be judged on whether it achieved the arsenal's "complete destruction".
Israeli officials had privately expressed dismay about President Barack Obama's handling of the Syria crisis, fearing that any failure to follow through with a threat of military action would encourage Iran to press on with its nuclear work.
Israel's Prime Minister Benjamin Netanyahu has said that Syria must be stripped of its chemical weapons and that it had carried out a "crime against humanity"
Netanyahu said that Syria's ally Iran was watching to see how the world reacted, and that any message sent to the regime "will be received loudly in Iran".
"It must be ensured that the Syrian regime is stripped of its chemical weapons, and the world must make sure that whoever uses weapons of mass destruction pays a price for it," Netanyahu said.
Forceful and unforgiving language from John Kerry at the US Senate hearing as the White House continues to try to persuade lawmakers to vote for Syria strike.
Kerry said Israel and Jordan are "one stiff breeze away" from a chemical strike.
"If we fail to act, our interests would be seriously set back," he added.