An Israeli military vehicle on the occupied Golan Heights was hit by gunfire from neighboring Syria on Monday, the Israeli army said.

"A military vehicle traveling in the Golan was hit by gunfire from Syria. Apparently they were stray bullets, and there were no injuries" to those aboard the vehicle, a military spokesman told Agence France Presse.

Bulgarian Prime Minister Boyko Borissov condemned on Monday the assassination of Internal Security Forces Intelligence Bureau head Brigadier General Wissam al-Hasan on October 19 in Beirut's district of Ashrafiyeh.

Addressing claims that Bulgarian explosives were used in the blast, he said: “We condemn some sides' attempts to drag Bulgaria's name in the matter.”

Israeli prosecutors have charged two Jewish youths with vandalising Palestinian cars and incitement to racism, a police statement said on Monday.

It said that they were arrested on October 21 and last week charged with puncturing the tires of Palestinian-owned vehicles in the West Bank and east Jerusalem.

Israeli forces have detained the wife of an Islamic Jihad leader who is being held in administrative detention, Israeli and Palestinian sources said on Monday.

Palestinian security sources in the northern city of Jenin said Nawal Saadi, 52, was arrested at her home in the city's refugee camp in the early hours of Monday morning.

A Palestinian man apparently suffering psychiatric problems was killed by Israeli troops after he approached Gaza's border fence, Palestinian medical sources said on Monday.

The 20-year-old man, named as Ahmed al-Nabaheen, was injured on Sunday evening, but the Israeli army refused to allow Palestinian ambulances to the scene to transport him, the medics said.

Israeli Prime Minister Benjamin Netanyahu and Defense Minister Ehud Barak in 2010 ordered the army to prepare an attack against Iranian nuclear installations, though the order was later rescinded, Israeli television said Sunday.

According to private television Channel 2, the order was not implemented due to opposition from the army chief at the time, General Gabi Ashkenazi, and from then Mossad chief Meir Dagan.

The Israeli air force has successfully tested an upgraded version of its "Iron Dome" missile defense system, the defense ministry said on Sunday.

"This test constitutes a new success in the project to strengthen the Iron Dome's performance," Defense Minister Ehud Barak said in a statement.

Armed forces chief Benny Gantz said on Sunday the Syria conflict could become Israeli business, as fighting between regime forces and rebels raged near Israeli positions on the strategic Golan Heights.

"This is a Syrian affair that could turn into our affair," the army's website quoted him as saying during a visit to troops on the frontier. It added that he told the soldiers to be alert, but did not elaborate further.

Israel was on Sunday split over the weight of remarks by Palestinian leader Mahmoud Abbas in which he appeared to give up on the right of refugees to return to homes they lost or fled from in the 1948 war.

His remarks were immediately welcomed as "courageous" by Israeli President Shimon Peres, but sparked a backlash of protest in the Hamas-ruled Gaza Strip where thousands burned pictures of the Palestinian leader.

Palestinian cars were vandalized overnight in the Shuafat neighborhood of Israeli-annexed east Jerusalem, in an attack that bore the hallmarks of a hate crime by Israeli rightwing extremists, Agence France Presse reported.

Six vehicles had their tires slashed and were daubed with slogans in Hebrew reading "Price tag," "Death to the enemy" and "Kippa Sruga" the name of a wildcat settlement outpost in the northern West Bank razed by Israeli security forces on Thursday.