The Mustaqbal parliamentary bloc strongly condemned on Tuesday the Israeli strike against the Syrian region of Quneitra, saying that “attacks against Arab land are unacceptable regardless of their causes.”

It said in a statement after its weekly meeting: “Political powers in Lebanon should prioritize protecting Lebanon and its people and avoid sliding towards regional dangers.”

Israel is on high alert for possible attacks from Hizbullah following an airstrike on its members in Syria, Israeli defense officials said Tuesday, as the Jewish State boosted deployment of its "Iron Dome" anti-missile aerial defense system along its northern frontier.

Israel has also increased surveillance activities in the area which borders Lebanon and Syria, the officials said.

The army command denied on Tuesday that Military chief General Jean Qahwaji made a statement to the pan-Arab daily Asharq al-Awsat concerning the Israeli strike that killed a prominent Hizbullah fighter with five other members in Syria's Golan Heights.

“The army command completely denies that Qahwaji made any remarks to the newspaper or any other media outlet concerning the strike,” it said in statement.

Leaders of Israel's 1.7 million Arabs declared a general strike throughout the country on Tuesday in protest at the recent deaths of two Bedouin men in confrontations with police.

Former member of parliament Taleb al-Sana, chairman of an umbrella organization of Arab Israeli groups, said schools and businesses would close from the Galilee in the north to the Negev desert in the south.

Hizbullah leader Sayyed Hassan Nasrallah is expected to give a speech on Sunday following the death of six party members in an Israeli strike in Syria as the movement investigated whether the attack was a result of a major security breach.

As Safir daily said Tuesday that Nasrallah had been scheduled to address his supporters on the seventh assassination anniversary of military commander Imad Mughniyeh on February 16.

Unidentified assailants blew up the car of a Hamas security official in Gaza during the night, the interior ministry said Tuesday, in a sign of increasing instability in the Palestinian territory.

"A home-made bomb damaged a car belonging to a military police officer which was parked in front of his house in Gaza City, without causing casualties," Gaza interior ministry spokesman Iyad al-Buzum said in a statement.

An Argentine prosecutor found dead just hours before giving what was expected to be damning testimony against President Cristina Kirchner appears to have committed suicide, the nation's top security official said Monday.

"All signs point to suicide," said Argentine Security Secretary Sergio Berni following the death of Alberto Nisman, 51, whose body was found overnight in his apartment in the trendy Puerto Madero neighborhood of the capital.

Japan's Prime Minister Shinzo Abe held talks with top Israeli officials in Jerusalem on Monday in a bid to deepen economic cooperation while also bringing a tough message on peace.

Abe said Tokyo would continue to have an "active engagement" in efforts to broker peace in the region as he held separate talks with Prime Minister Benjamin Netanyahu and President Reuven Rivlin. 

Iran's Foreign Minister Mohammed Javad Zarif said on Monday that he "vigorously condemns" the Israeli strike that killed six Hizbullah fighters in Syria.

Zarif said Sunday's strike was no surprise, describing it as "state terrorism" by Israel.

Hizbullah's Jihad Mughniyeh, the son of its slain former military commander, was laid to rest on Monday a day after an Israeli strike in Syria that killed six of the party's fighters.

The raid, near Quneitra on the Syrian-controlled side of the Golan Heights, enraged the group's supporters, but analysts said Hizbullah would seek to avoid a major escalation with Israel.