Israeli intelligence group The Intel Lab on Saturday released satellite photos of what it said is damage from a reported drone attack on an Iranian nuclear facility last month.

“According to Nournews, June 24th, 2021 ‘Security forces have managed to foil an act of sabotage against one of the buildings of Atomic Energy Organization of Iran (AEOI) in Karaj, Alborz province’. Satellite Image from July 1st tells a different story,” the group wrote in a tweet showing the satellite footage.

Iranian officials said the attack in Karaj, on the outskirts of Tehran, targeted one of Iran’s main manufacturing centers for the production of the centrifuges used at the country’s two nuclear facilities, Fordow and Natanz.

While no one claimed responsibility for the attack, officials told The New York Times that the centrifuge factory, known as the Iran Centrifuge Technology Company, or TESA, was on a list of targets that Israel presented to the Trump administration early last year.

The Israeli government did not comment on the attack.

The drone attack has similarities to one carried out against a Hezbollah facility in Beirut in August 2019, which destroyed what Israeli officials described as machinery vital to Hezbollah’s precision-missile production efforts, according to the report.

Just three days before the alleged attack in Karaj, Iran reported that it had temporarily shut down the nuclear power plant in Bushehr, without elaborating on the causes of the shutdown.