Nearly 200 nations, signatories of the Nuclear Non-Proliferation Treaty (NPT), backed plans for the meeting in 2012.

In a document agreed at the talks, Israel was singled out for criticism.

Israel, which has not signed the NPT, dismissed the document as "deeply flawed" and "hypocritical".

"It ignores the realities of the Middle East and the real threats facing the region and the entire world," the Israeli government said in a statement.

The statement was issued in Canada, where Prime Minister Benjamin Netanyahu is visiting.

In the past, the Israeli government has refused to comment on rumours that Israel has a stockpile of nuclear weapons.

In April, Mr Netanyahu pulled out of a US summit on nuclear arms after learning that Egypt and Turkey intended to raise the issue.