Iran 'a year or more' from nuclear capability, says Obama

President Barack Obama says US intelligence assessments show Iran is still "a year or more away" from building a nuclear weapon.

The president's assessment puts him at odds with Israel, which says Iran is just months away from being able to build a bomb.

Obama, in an interview with a news agency, acknowledged that Americans estimates are "more conservative" than those of the Israelis.

Obama also says the world must 'test' whether Iranian President Hassan Rouhani is serious about resolving its nuclear dispute diplomatically. But he says the US won't take a 'bad deal' from Iran.

Israel has dismissed Iran's outreach to the US.

Obama says that if he were Israel's leader, he'd be "be very wary as well of any kind of talk from the Iranians."