North Korea on Monday condemned joint U.S.-South Korean military drills as a "provocative act," warning of the danger of sparking war with "an accidental single shot," days after Seoul's air force mistakenly bombed a village on its own territory.

The U.S. aircraft carrier USS Carl Vinson arrived at the southern port city of Busan in South Korea on Sunday as a show of force against North Korea, South Korea's navy said.

The Carl Vinson Carrier Strike Group arrived in South Korea only days after Pyongyang carried out its fourth missile test this year.

The Carl Vinson is the first U.S. carrier to visit Busan since the USS Theodore Roosevelt docked there on June 24. Days later, the Theodore Roosevelt and its strike group took part in Freedom Edge, the first major trilateral maritime and aerial exercise involving the United States, South Korea and Japan.

North Korea condemns US-South Korea military exercises, warning of accidental war escalation following a recent South Korean training mishap.

The North Korea Foreign Ministry said U.S.-South Korea joint military exercises are "a dangerous provocative act," state media KCNA reported on Monday. Annual South Korean and U.S. military exercises called Freedom Shield are due to begin on Monday and run until March 20.