Pakistan, June 25 -- The Islamic State group in Afghanistan is "a very worrisome" threat to the United States, Marine General Frank McKenzie has said. He also added, "The ISIS in Afghanistan certainly has aspirations to attack the United States." On June 13, a suicide bomber detonated an explosive device near a police vehicle in the capital of eastern Afghanistan's Nangarhar province, killing at least three officers and six civilians. The Islamic State of Iraq and the Levant (ISIL or ISIS) claimed responsibility for the attack through its Amaq website. Attahullah Khogyani, spokesman for the provincial governor, said security forces were the target of the attack. Several of the wounded were police officers. Taliban, presently, are holding ...