U.S. Secretly Alerted Iran Ahead of Islamic State Terrorist Attack

The U.S. secretly warned Iran that Islamic State was preparing to carry out the terrorist attack early this month that killed more than 80 Iranians in a pair of coordinated suicide bombings, U.S. officials said.

The confidential alert came after the U.S. acquired intelligence that Islamic State’s affiliate in Afghanistan, ISIS-Khorasan, known as ISIS-K, was plotting to attack Iran, they said.