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A U.S. aircraft carrier-led strike group is headed towards the western Pacific Ocean near the Korean Peninsula, a U.S. defense official confirmed to CNN.

This picture taken on March 14, 2017, shows a two-seater F/A-18F Super Hornet landing on the deck of the Nimitz-class aircraft carrier USS Carl Vinson during a South Korea-U.S. joint military exercise in seas east of the Korean Peninsula.
(Credit: Jung Yeon-Je / AFP / Getty Images)

The move of the USS Carl Vinson is in response to recent North Korean provocations, the official said.

Adm. Harry Harris, the commander of U.S. Pacific Command, directed the USS Carl Vinson strike group to sail north to the Western Pacific after departing Singapore on Saturday, Pacific Command announced.

It is not uncommon for aircraft carriers to operate in that area, and the U.S. regularly deploys military assets, such as aircraft, to the region as a show of force. In fact, the Carl Vinson was in South Korea last month for military exercises.

Just days ago, North Korea launched a Scud extended-range missile, which U.S. officials said exploded in flight. The regime also has recently conducted several missile engine tests as it works to improve its ballistic missile technology.

Earlier this year, North Korea says it successfully tested a nuclear warhead. Pyongyang claims it is pursuing nuclear weapons to defend itself from what it calls US aggression.

News of the carrier move comes just after a summit meeting between U.S. President Trump and Chinese President Xi Jinping, where North Korea was one of the top items on the agenda.

U.S. Secretary of State Rex Tillerson said Trump and Xi agreed on the “urgency of the threat of North Korea’s nuclear weapons program” and agreed to work together to resolve the issue “peacefully.”

Earlier this year, China called on both North Korea and the U.S. to tone down tension on the Korean Peninsula — North Korea by suspending its nuclear weapons program and the U.S. by stopping military exercises with South Korea that inflame the Pyongyang regime.

Days before the summit, Trump warned that the U.S. was prepared to act unilaterally to stop North Korea’s nuclear program from advancing further should China be unwilling to use its leverage over Pyongyang.

But analysts say any unilateral military options for the U.S. concerning North Korea posed significant problems.

While the U.S. possesses overwhelming firepower compared to North Korea, an American strike on North Korea could expose South Korea to devastating casualties in retaliation, experts say.

The Vinson strike group will operate in the Western Pacific rather than executing previously planned port visits to Australia, Pacific Command said.

The nuclear-powered, 97,000-ton Vinson, one of 10 active U.S. aircraft carriers, has more than 60 aircraft and about 5,000 personnel. It is based in San Diego.

Reuters first reported the move of the group.