KABUL, Afghanistan — U.S. airstrikes on a remote region of Afghanistan have destroyed a radio station operated by the Islamic State group, American and Afghan officials said today.

“Voice of the Caliphate” radio operated by Islamic State near the border with Pakistan was destroyed in U.S. two airstrikes, according to a U.S. military official.

In an official statement, U.S. Army Col. Mike Lawhorn, spokesman for the U.S.-NATO mission in Afghanistan, said: “U.S. forces conducted two counter-terrorism airstrikes in Achin district” in Nangarhar province late Monday. He had no further details.

The radio station was broadcasting illegally across Nangarhar, spreading the group’s extremist message, issuing threats to journalists in the provincial capital Jalalabad and attempting to recruit young men to its cause.

Afghan officials had believed the radio station, which was set up in late 2015, was operating from mobile facilities that enabled it to move easily across the porous, mountainous border, making it difficult to track down.