Iran’s Islamic Revolutionary Guard Corps announces that it targeted a “spy headquarters” and a “gathering of anti-Iran terrorist groups” with ballistic missiles, moments after explosions rocked several areas of Iraqi Kurdistan.

Three security sources tell Reuters that the airport in Erbil, which is the capital of Iraqi Kurdistan, has stopped air traffic following the explosions.

There is no immediate confirmation of what was struck, but the IRGC announcement appears highly rare and significant.