US warship in west Pacific for navy drills with Japan

The US aircraft carrier Carl Vinson and other warships started joint exercises with Japan on April 23, the American navy said, as regional tensions rise over North Korea's missile and nuclear programs.

The exercises -- also involving a U.S. guided-missile cruiser and guided-missile destroyer -- are being held in the Philippine Sea, the navy said, as the naval strike group "continued its northern transit in the Western Pacific."

Confusion has clouded the carrier group's whereabouts in recent days after President Donald Trump suggested the "armada" was steaming towards North Korea when in fact it was sent towards Australia.

On April 22 U.S. Vice President Mike Pence said in Sydney the strike group would arrive in the Sea of Japan (East Sea) "in a matter of days."

Pence has vowed an "overwhelming and effective" response to any North Korean attack as fears grow it may be preparing for another nuclear test.

Pyongyang reacted defiantly.

State newspaper Minju Joson quoted what it called military sources as saying Washington plans to station "several nuclear carrier task forces" off the Korean peninsula this week.

"The army of the DPRK [North Korea] already declared it will deal merciless destructive blows at the enemies so that they would not come back to life again should they make reckless provocation," the paper said.

The Carl Vinson carrier strike group and the Japanese navy "commenced an at-sea bilateral exercise in the Philippine Sea" on April 23, the U.S. Navy posted on its Facebook page.

The joint drill is designed to "ensure maritime forces remain ready to defend the region when called upon," it said.

"Seeing the threats we are facing now, it is no surprise that Japan and the...