Iran is seeking to open a "third front" against Israel using Hizbullah fighters on the Syrian Golan Heights, Israeli Prime Minister Benjamin Netanyahu said on Sunday.

Netanyahu said Tehran's alleged attempts to entrench itself along Israel's borders was one of the biggest emerging security threats facing Tel Aviv.

A top Palestinian official on Sunday accused Israel of trying to topple the Palestinian Authority by continuing its freeze on millions of dollars in crucial tax monies. 

A Swedish journalist has been freed from captivity in Syria after a week-long detention by Syrian government forces, local media reported Sunday. 

Joakim Medin, a 30-year-old freelance reporter, told the Expressen newspaper that he was seized at a road block along with his Kurdish interpreter Sabri Omar while working in the Kurdish town of Qamishli on the border with Turkey.

Israel goes to the polls next month facing Middle East turmoil and growing diplomatic isolation, but campaigning has been dominated by the lifestyle of the prime minister and his wife.

One might be forgiven for thinking that the conduct of Benjamin Netanyahu and his wife Sara is the most important issue facing Israel.

The United States voiced fears Thursday that the Palestinian Authority may be teetering on the brink of collapse because of a lack of funding, as Israel withholds taxes and donor aid stalls.

Washington has been in urgent talks with regional leaders as well as other stakeholders in the frozen Middle East peace process in a bid to try to release more funds.

Palestinian officials are nervously watching a landmark terrorism trial in the United States, brought by victims of Palestinian suicide bombings and shootings aimed at civilians. They fear a negative verdict could hurt their international image at a time when they are preparing to press war crimes charges against Israel.

The $1 billion lawsuit was filed over a series of deadly attacks in or near Jerusalem that killed 33 people and wounded hundreds more during the second Palestinian intifada, or uprising, a decade ago. The plaintiffs have turned to the U.S. court because some of the victims were American citizens.

Nearly two dozen U.S. House Democrats on Thursday urged the postponement of Israeli Prime Minister Benjamin Netanyahu's planned speech to Congress, saying the controversially-timed address could "undermine" nuclear negotiations with Iran.

House Speaker John Boehner invited Netanyahu to address a joint meeting of Congress on March 3 two weeks before his country's elections, and the speech, in which the prime minister will discuss the threat of Iran's nuclear program, has caused a political furor in Israel and Washington.

Tens of thousands of people demanding justice marched in symbolic silence Wednesday in soaking Buenos Aires to mark a month since the suspicious death of a prosecutor who was ready to accuse the Argentine president of a massive cover-up.

"I am here because I want to see justice done for someone who gave his life for the truth," said teacher Marta Canepa, 65, among those traipsing the 1.7 kilometers (just over a mile) under the banner "Homage for Prosecutor Alberto Nisman."

The White House on Wednesday denied keeping Israel in the dark over ongoing nuclear negotiations with Iran, but suggested its ally had cherry-picked information to bolster opposition to the deal.

Amid strains in the U.S.-Israeli relationship over negotiations to reach a landmark nuclear agreement with Iran, White House spokesman Josh Earnest rejected suggestions Israel was being frozen out.

The failure by world donors to deliver billions of dollars of aid to rebuild Gaza is jeopardizing efforts to avoid a new flareup in the Palestinian territory, a senior U.N. official warned Wednesday.

U.N. political affairs chief Jeffrey Feltman told the Security Council that donors who had promised $5.4 billion to the Palestinians at the Cairo conference four months ago "have yet to fulfill the vast majority of their pledges."