David Cameron has urged Israel to pursue a peace deal with Palestinians that could mean "an end of all conflict" in the Middle East.
Israel says it has has intercepted a "monstrous cargo" of weapons on a cargo ship heading to Gaza from Iran.
ITV News Correspondent Geraint Vincent explains why Israel's alleged attack at the Lebanese-Syria border may not create new conflict.
David Cameron will hold talks with Middle East leaders when he visits Israel and the Palestinian territories this week.
The prime minister will meet Israeli counterpart Benjamin Netanyahu and deliver a keynote speech to the Knesset, the country's parliament, after arriving in the area on Wednesday.
He will also discuss the situation with Palestinian leader Mahmoud Abbas during his two-day trip.
David Cameron will visit Israel and the Palestinian territories on Wednesday, in what will be the prime minister's first visit to Israel since entering Downing Street.
He was due to travel to the area last month, but the trip was put off as winter storms battered Britain.
There had been speculation he may be forced to postpone again due to a strike by workers at the Israeli Foreign Ministry.
The Israeli army says it has seized a large shipment of munitions being sent from Iran to Palestinian groups on the Gaza Strip.
An Israeli Defence Forces Twitter account shared the following images:
The Arab League endorsed Palestinian President Mahmoud Abbas's rejection of Israel's demand for recognition as a Jewish state, as U.S.-backed peace talks approach a deadline next month.
The US want Mr Abbas to make the concession as part of efforts to reach a "framework agreement" and extend the talks aimed at settling the Israeli-Palestinian conflict.
Benjamin Netanyahu has been Israel's first prime minister to make recognition of his country as a Jewish state a requirement for peace.
Israeli warplanes struck a target in eastern Lebanon near the border with Syria on Monday, security sources told Reuters.
It was not immediately known what the target was or the exact location of the air strike, which occurred in a mountainous area near the border.
The Israeli army declined to comment but an Israeli security source confirmed that there has been "unusually intense air force activity in the north", referring to Lebanon.
Israeli airstrikes, believed to target Hezbollah posts or shipments, have been reported at the Lebanese-Syria border.
According to local reports, the two strikes seem to be in Syria's territory.
The Prime Minister has cancelled his trip to Israel and Palestine scheduled for next week.
In a press conference David Cameron said: "Nothing is more important than dealing with these floods."
There are concerns that US attempts at restarting peace talks in the Middle East have been hindered by a small number of Jewish extremists.
Attacks on Palestinians living in the West Bank have quadrupled in the past eight years, according to the United Nations.
ITV News' Middle East correspondent Geraint Vincent reports from Qusra, in northern the West Bank: