(QHA) -

Iran and six world powers agreed Sunday to deal that limits its nuclear programme, achieving the first diplomatic breakthrough since Tehran's nuclear activities came to light 10 years ago. Western leaders hailed their hard-won nuclear agreement but were quickly confronted by the scale of the six-month struggle ahead to reach a final settlement, Voice of Russia reports.

For, while the US and its allies welcomed an accord that they hope will put Iran's nuclear enrichment program on hold as talks continue, it marks only the first stage in fraught negotiations. Within hours, Israel strongly condemned the interim deal as asking too little of Iran while taking off too much pressure.

Israeli Prime Minister Benjamin Netanyahu said it "is not a historic agreement - it is a historical mistake

"After a cabinet meeting, Netanyahu said the deal "has not made the world a safer place. ... This agreement has made the world a much more dangerous place."

In Washington, US President Barack Obama said the agreement contained "substantial limitations, which will help prevent Iran from building a nuclear weapon."

He attempted to reassure partners in the region: "The resolve of the United States will remain firm, as will our commitments to our friends and allies - particularly Israel and our Gulf partners, who have good reason to be skeptical about Iran's intentions."