China Buckle for North Korea Missiles, warns America.

China warned of a "head-on collision" Wednesday unless North Korea stops launching banned missiles and the United States and South Korea halt their joint military exercises.

"The two sides are like two accelerating trains coming toward each other, with neither side willing to give way," Foreign Minister Wang Yi said in Beijing at his annual news conference for the opening of the National People's Congress, China's parliament.

"The question is: Are the two sides really ready for a head-on collision?" Wang said. "Our priority now is to flash the red light and apply brakes on both trains."

Wang warned the South Korea, North Korea and US not to start a full war.