A deadly explosion at Iran’s Parchin military complex on Wednesday was caused by quadcopter suicide drones, in an attack that fits a pattern of previous strikes that have been attributed to Israel, The New York Times reported Friday.

The report cited three Iranian sources along with a US official, who confirmed drones hit the site, but declined to say who was behind the attack. It said the drones exploded into a building being used for research on Iran’s drone development.

The blast killed a young engineer at the site and injured one other person.

The report noted that the strike fits a pattern of previous attacks that have been attributed to Israel, including previous strikes against Iran’s drone program.... Read More: Times of Israel