Israel's Benjamin Netanyahu on Tuesday winds up a high-profile U.S. visit focused on Iran's perceived nuclear threat after warning that his country would not live in the "shadow of annihilation."

Netanyahu was to meet with U.S. Secretary of State Hillary Clinton and visit the U.S. Congress a day after keenly-watched talks with President Barack Obama against the backdrop of speculation over a possible Israeli strike on Iran.

Sweden has in secret been helping Saudi Arabia plan the construction of an arms factory to produce anti-tank missiles, public broadcaster Swedish Radio reported Tuesday.

The Swedish Defense Research Agency (FOI) has helped Saudi Arabia since 2007, though construction on "Project Simoom" has yet to begin, the radio said citing hundreds of classified documents and interviews with key players.

Syrian authorities said on Tuesday they had seized what appeared to be an "Israeli-like reconnaissance plane" in an arms factory in the Baba Amr area of Homs, the official SANA news agency reported.

"In Baba Amr, the competent authorities uncovered a factory for weapons used by terrorists to prepare explosives and hand-made rockets to be launched indiscriminately against houses," the agency said.

Syrian state media on Tuesday lashed out at Washington for slapping sanctions on a key official broadcasting network, saying the U.S. move constituted a "violation" of press freedom.

Washington on Monday slapped economic sanctions on Syrian General Organization of Radio and TV, saying the state media network of Damascus was aiding the regime in its brutal campaign to put down a popular uprising.

Al-Qaida's front group in Iraq claimed dozens of attacks in Baghdad this year, including a suicide bomb at a funeral and the assassination of the head of a women's prison, in a statement seen on Tuesday.

In a post on jihadist forum Honein, the Islamic State of Iraq (ISI) listed 43 incidents it was responsible for between January 10 and February 10 in the Iraqi capital.

Al-Qaida gunmen have killed a soldier on the edge of Yemen's southwestern city of Bayda, the defense ministry said Tuesday, two days after a massive assault by the extremists killed scores of troops.

"The terrorist elements attacked security forces in Zaher checkpoint (late on Monday) killing the soldier Faisal Abas al-Sabri and wounding two others," the ministry's website26sep.net said, identifying the assailants as "al-Qaida gunmen."

Iran has sentenced a prominent human rights lawyer, Abdolfattah Soltani, to 18 years in jail for allegedly spreading anti-regime propaganda, several opposition websites reported on Tuesday.

"One of my husband's lawyers was told that my husband was sentenced to 18 years in jail in Borazjan (south Iran) and was also banned from practicing law for 20 years," Soltani's wife, Masoumeh Dehqan, told the reformist opposition website Rahebsabz.net.

A Saudi Arabian diplomat was shot in the chest and died in the Bangladesh capital in the early hours of Tuesday, the deputy commissioner of Dhaka police told Agence France Presse.

Police found Khalaf Al Ali at an intersection just two buildings away from his residence in the city's upmarket Gulshan district and rushed him to a hospital where he died three hours later, Lutful Kabir said.

Canada imposed Monday a fresh round of sanctions on Syria targeting the central bank and seven cabinet ministers in a bid to halt President Bashar al-Assad's deadly crackdown on dissent.

The Canadian embassy in Damascus and a consulate also were shuttered and Canadian diplomats left the country, the foreign affairs ministry said.

Two explosions on Monday hit a pipeline which supplies Egyptian gas to Israel and Jordan, marking the 13th such attack in just over a year, security officials said.

Six gunmen in an unmarked vehicle set explosives in two different parts of the pipeline, about 15 meters (yards) apart, one official told Agence France Presse.