Israeli officials on Sunday refused to comment on reports claiming that the Israeli prime minister ordered to spy on Iran to find possible violations of the interim nuclear deal signed last week in Geneva.

According to the London-based paper, the Sunday Times, Benjamin Netanyahu ordered the Israeli spy agency Mossad to fish for proof that Iran is violating the nuclear agreement that was set by its officials along with leaders from the US, Britain, France, China, Russia and Germany. The deal, which was described as "historic," was meant to curb Iran's nuclear ambitions in exchange for an easing of the debilitating economic sanctions.

In the report, the British newspaper quoted an Israeli intelligence source as saying: "It's clear that if a smoking gun is produced, (the interim agreement) will tumble like a house of cards."

The report also specified that Israeli spies were ordered to uncover any Iranian attempts to continue uranium enrichment in secret nuclear sites or to produce ballistic missiles as well as any attempts to design or construct a nuclear bomb.

Netanyahu and other Israeli officials slammed the interim agreement reached last weekend saying that it does not demand enough from Iran nor prevent it from creating weapons. Netanyahu called it "an historic mistake," and condemned the easing of sanctions.

An Israeli delegation will arrive in Washington D.C. later this week to meet with their US counterparts to discuss the different aspects of future final agreement with Tehran, following a phone conversation between Netanyahu and Barack Obama last week.

On Wednesday US Secretary of State John Kerry will arrive in Israel to review the peace talks between Israel and the Palestinians as well as discuss the nuclear agreement with Netanyahu.

The US and Israel have parted ways recently in their approach towards relations with Iran. The US is leading efforts to achieve a historic pact with the Islamic country whereas Israel says it supports a diplomatic deal but only if it sustains pressure on Iran.

Iran on its behalf insists that its nuclear plan is for peaceful purposes and blames Israel for trying to dampen its diplomatic efforts.