Russia said on Thursday it had asked the United States via Interpol to confirm Smolenkov’s whereabouts
The new Art of War?
The motives for the explosion have not been determined yet
Members of an ISIS cell were arrested
Butina was arrested after the FBI suspected she might try to leave the country
Last week, the FSB said it also arrested several IS-linked suspects in Moscow, where they allegedly were plotting a series of suicide bombings to coincide with New Year's celebrations
Officers allegedly involved in spying for US interests