The Israeli military said it struck an aerial refueling aircraft at an airport in Mashhad in northeastern Iran on Sunday, describing it as its longest-range attack since launching operations against Iran last week.

"A short while ago, the IAF (Israeli Air Force) struck an Iranian aerial refueling aircraft at Mashhad airport in eastern Iran, approximately 2,300 kilometers (1,430 miles) from Israel,” adding it was “the longest-range strike conducted since the beginning of the operation” that began Friday.

Iran’s state-linked Tasnim news agency reported an explosion near Mashhad’s Shahid Hasheminejad Airport, adding that “no damage was caused to the airport’s buildings or runway.”

Mashhad is home to the Imam Reza shrine, the holiest site in Iran for Shia Muslims.

Israel bombed military sites and fuel depots in Iran on Sunday on the third day of a conflict between the two countries, with Tehran retaliating with missile strikes.