Israeli Prime Minister, Ariel Sharon put a US-backed Middle East peace plan on borrowed time after a pair of Palestinian suicide bombers killed two Israelis in blasts that shook a six-week-old cease-fire.

But the peace ?road map? appeared to be in no immediate danger of collapse despite the sudden clouds over what has been a summer of content for ordinary Israelis enjoying a respite from three years of daily violence.

Israel refrained from major military action following the attacks but yesterday destroyed the family home of one of the bombers, Khamis Jarwan, 17, of the al-Aqsa Martyrs Brigades, in Askar refugee camp in the West Bank city of Nablus.

Witnesses in the camp said the Israeli army was preparing to dynamite the residence of the second bomber, from the militant Islamic group Hamas, who also lived in Askar.

Hamas said it still stood by the truce it declared along with

several other militant groups on June 29. Both Hamas and an armed group in al-Aqsa, which belongs to Palestinian President Yasser Arafat?s Fatah faction, called the bombings revenge for Israel?s ?assassination? of two Hamas members in a raid on Friday in Askar.

?We will not be stopped by bombs?

Sharon told reporters: ?Israel will not be able to continue in the peace process despite its strong desire to do so, if terrorism does not

stop completely and the Palestinian Authority does not fulfil all its

obligations.?

He demanded Palestinian Prime Minister, Mahmoud Abbas, who condemned the bombings in the Israeli town of Rosh Ha?ayin and near the Jewish settlement of Ariel in the West Bank, to dismantle militant groups as mandated by the peace plan.

A 43-year-old Israeli was killed in the explosion that wrecked a Rosh Ha?ayin supermarket and an 18-year-old died in the blast at a bus stop outside Ariel.

In Washington, Secretary of State, Colin Powell told a group of Israeli and Arab students in a speech: ?We will continue to move forward on the road map (...) We will not be stopped by bombs.?

Abbas aborted a tour of Gulf states to return home because of the bombings.

A civil war?

?The Palestinian Authority will work hard to maintain the truce and quiet,? the moderate Abbas, who coaxed militant groups into the suspension of attacks, told Reuters from Qatar. But Palestinian officials have said a Palestinian Authority crackdown on militants would lead to civil war.

?Israel will continue to fight terror wherever the Palestinian Authority does not,? Sharon said in a speech to Jewish students from the United States. ?We will exercise our right of self-defence.?

But a senior member of Sharon?s cabinet said despite the attacks, Israel had not given up on the two-month-old, ?road map? that envisions creation of a Palestinian state by 2005.

?We are not prepared to come to terms with such attacks, but I do not believe we have reached the point where the Israeli government says it has failed in its efforts to achieve calm and to try to move forward in the peace process,? Vice Premier, Ehud Olmert told Channel One television.

Political fallout came fast, with Israel postponing a release of 76 Palestinian prisoners, some of whom were already on a bus that pulled out of a prison?s gates and then reversed back inside after news of the attacks.

Jeffrey Heller