US issues warning after Ethiopia grenade attacks

The United States issued a warning Thursday to its citizens about travelling to a popular tourist region in Ethiopia after a string of grenade attacks targeting hotels and homes.The US embassy in Addis Ababa said there had been four grenade blasts this month in Gondar, a city in the north known for its ancient castles.A popular stop on Ethiopia's tourist circuit, Gondar was also the scene of anti-government protests last year that led to the declaration of a nationwide state of emergency.