A U.S.-Israeli citizen being held in Egypt on espionage charges is not a spy, Israel's foreign minister Avigdor Lieberman told Israeli military radio on Tuesday.

"I can say categorically that this student, who may have behaved bizarrely and irresponsibly, has no ties with Israeli, American or even lunar intelligence services," Lieberman said.

A key U.S. lawmaker called Monday for cutting all U.S. aid to Lebanon's new government, in which Hizbullah and its allies hold the majority, and to any Palestinian government in which Hamas is a partner.

"The U.S. should immediately cut off assistance to the Lebanese government as long as any violent extremist group designated by the U.S. as foreign terrorist organizations participates in it," said House Foreign Affairs Committee Chair Ileana Ros-Lehtinen, a Republican and frequent White House critic.

Israeli police arrested four Israeli settlers in the West Bank settlement of Yitzhar on Monday, accusing them of "attacks on public order," a police spokeswoman said.

Among those detained was a minor suspected of setting fire to Palestinian property, she said, adding that police had seized various items including computers when they arrested the suspects.

Israel's military police on Monday opened an inquiry into the theft of airplane parts, a spokeswoman said without confirming press reports that eight fighter-jet engines had been stolen.

"The military police have opened an inquiry into the matter," she told Agence France Presse without giving further detail or confirming reports of the theft from Tel Nof airbase near Tel Aviv.

Egyptian authorities have arrested an alleged Israeli officer working for the Mossad intelligence agency on charges of spying, the official MENA news agency reported on Sunday.

The Supreme State Security prosecutor ordered the man's detention for 15 days pending investigations into alleged "spying on Egypt with the aim of damaging its economic and political interests," MENA said.

American University of Beirut President Peter Dorman condemned on Saturday the petition against AUB honoring former World Bank chief James Wolfensohn, which also forced him to cancel his scheduled keynote address at the university’s Commencement ceremonies on June 25.

He also slammed the media coverage of the event, describing it as portraying the formed World Bank chief in a negative light.

An Israeli officer revealed that the Israeli army had amassed some 200 targets in Lebanon ahead of the July 2006 war, including 100 houses and storage areas the party had used to safe-keep long-range missiles it had received from Iran, reported the Jerusalem Post on Friday.

He added that these targets were all destroyed in the first night of the war.

Free Patriotic Movement leader MP Michel Aoun announced on Saturday that Lebanon’s future will be stable, ruling out the eruption of a civil or sectarian war or Sunni-Shiite conflict in the country.

He said upon his arrival to the southern town of Mlita: “We will twist the arm of U.S. Intelligence in Lebanon like we twisted that of Israel.”

Former World Bank chief James Wolfensohn on Friday canceled a scheduled keynote address at the American University of Beirut, amid accusations by the AUB faculty that he supported Israel.

"AUB regrets to announce that Sir James Wolfensohn, out of concern that his presence at the June commencement ceremony would distract from the celebratory nature of the event, has decided that he will not attend," read a statement released by the university.

A Vatican expression of concern over the violence in Syria this week was the latest sign of deep misgivings in Catholic circles about Arab uprisings seen as a threat for Christian minorities.

"The pope has been rather silent on the Arab revolutions," said Marco Politi, a Vatican specialist for Italian daily Il Fatto Quotidiano.