Thousands of troops participate in largely computer simulated Ulchi Freedom Guardian drills despite warnings from North.
The clashes took place in Bria between a majority Muslim rebel group and a predominantly Christian armed group.
Five sailors also reported injured after navy destroyer USS McCain collided with a tanker in waters east of Singapore.
Lebanon army advances against ISIL in border battle and has recaptured two thirds of the territory, says military.
Death toll rises above 250 as eastern Indian state faces its worst flooding in decades, affecting 13 million people.