U.S. asks Cuba to send back 15 embassy staff in Washington "within 7 days"

The Cuban Embassy in the United States is seen in Washington D.C., the United States, on Oct. 3, 2017. The U.S. government Tuesday announced it has asked for the departure of 15 Cuban diplomats from the Cuban embassy in Washington in response to mysterious "attacks" that led to the recall of some U.S. embassy staff in Havana. (Xinhua/Yin Bogu)