This story has been updated.
SEOUL, South Korea — Two Apache helicopters collided Friday at Camp Humphreys, injuring four U.S. soldiers, a spokesman said.
The AH-64 helicopters were getting ready to take off when the collision occurred at the base south of Seoul, said Lt. Col. Richard Hyde, the 2nd Infantry Division spokesman.
The four soldiers suffered minor injuries and were taken to nearby hospitals, he said. Three were released, while one remained in the hospital for observation, according to a press release.
It did not give the cause, saying an investigation is underway.
Last November, two pilots were killed when an Apache attack helicopter crashed during a routine training mission 50 miles east of Camp Humphreys.
About 28,500 U.S. servicemembers are stationed in South Korea, which remains technically at war with the North after the 1950-53 conflict ended with an armistice instead of a peace treaty.
