Reports say a blast was heard in Iran's Natanz town where the nuclear site is located. Sputnik news agency quoting local Iranian student news agency reported on Saturday about the blast, although it hasn't been officially confirmed.

Blast heard in Iran's Natanz where nuclear site is located: Report

The International Atomic Energy Agency has warned against Iranian expansion of uranium beyond the highly enriched threshold of 20 per cent purity. The UN nuclear watchdog said it will ''increase the frequency and intensity of its safeguards activities'' at the Natanz uranium enrichment facility 250 km (155 miles) south of the Iranian capital Tehran.

'Dangerously close to weapons-grade': IAEA warns against Iranian expansion of uranium

Iran and other world powers resumed talk in Vienna on Thursday to revive the 2015 nuclear deal. The talks to revive the troubled deal have been complicated by Iran's decision to ramp up Uranium enrichment and sabotage at Natanz nuclear facility last week.

JCPOA talks resume in Vienna on Iran nuclear deal revival

Iran's President Hassan Rouhani said on Wednesday Tehran's decision to boost uranium enrichment to 60 per cent was a response to Israel's "nuclear terrorism," three days after an attack on its Natanz nuclear facility.

Iran says 60% uranium enrichment is response to Israel's 'nuclear terrorism'

Iran's President Hassan Rouhani has said that Tehran's decision to boost uranium enrichment to 60% was a response to Israel's "nuclear terrorism," three days after an attack on its Natanz nuclear facility.

Iran says 60% Uranium enrichment answer to 'nuclear terrorism'

The war of words between Iran and Israel over Iran's Natanz nuclear facility outage has heated up. The nuclear site that has been very active in the past few years is a Uranium enrichment site.

Iran-Israel war of words ensues over Natanz nuclear facility power outage

Iran's atomic organisation said the accident at Natanz nuclear facility was a terrorist attack.

Iran: Natanz nuclear facility hit by terrorist act

Iran's Foreign Minister Mohammad Javad Zarif has said that his government will take revenge for the damage caused to Natanz nuclear facility, blaming its regional arch-foe Israel for Sunday's incident.

'We will take our revenge from the Zionists': Iran blames Israel for Natanz incident

Iran's Atomic Energy Organisation said on Sunday that its Natanz nuclear facility was hit by a terrorist act. This claim was made hours after it had said that an "accident" had caused a power failure there.

Iran atomic agency claims nuclear facility hit by 'terrorism'

Officials from the United Nation’s (UN) atomic watchdog had confirmed on October 28 that Iran has started building an underground centrifuge assembly plant after its previous one exploded in what Tehran called a sabotage attack over the summer.

Satellite images of Iran’s Natanz nuclear facility raise a concern

Satellite images shows that Iran has started construction at its Natanz nuclear facility. The pictures from the San Francisco-based Planet Labs shows what appears to be construction equipment.

Satellite photos show activity at Iran's Natanz nuclear facility

A fire that broke out at Iran's Natanz nuclear enrichment site on Thursday caused significant damage, the spokesman for the Atomic Energy Organization of Iran was quoted as saying on Sunday by the official IRNA news agency.

Iran admits fire at Natanz nuclear facility caused significant damage