Han added more missile tests will be held for sure.
The statement comes a day before the two countries with the USA will meet, on a vice defense minister level, to discuss ways to prevent North Korea from further conducting nuclear tests and launching missiles, according to the South Korean Yonhap news agency.
Aboard the USS Ronald Reagan, the vice-president told troops he was there as "storm clouds gather on the horizon" of north-east Asia.
"If the DPRK and U.S. -Republic of Korea's tit-for-tat posturing and mutual displays of strength fail to fundamentally change, then sooner or later something will go wrong on the Korean Peninsula", Wu told Phoenix, referring to North and South Korea by their official names.
On a 10-day Asia trip that will also take him to Indonesia and Australia, Mr Pence stressed that the USA hopes China will use its leverage to get its longtime ally North Korea to abandon its nuclear weapons programme.
"With every test, even a failed one, the North Korean scientists learn about their program", she said.
Tensions have escalated over North Korean moves to accelerate its weapons development.
The Ronald Reagan, whose home port is Yokosuka, Japan, is part of the Seventh Fleet and is regularly deployed around the western Pacific.
But the U.S. wanted to see a "tangible signal" from North Korea that it is serious about engaging in talks.
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In a rare interview with Hong Kong's Pheonix Television that aired on Friday, Wu conveyed China's position that Washington and Pyongyang should agree to a "dual suspension" of nuclear tests and military drills as a foundation for returning to talks - a stance opposed by both the United States and its ally South Korea.
James Kim, CEO of GM Korea, said there are opportunities to improve the free trade deal between Washington and Seoul. But he stressed: "Dialogue for dialogue's sake is meaningless". He said that an "all-out war" would result if the USA took military action, BBC reported.
During lunch at the Prime Minister's residence, Pence and Abe agreed that China needs to play a bigger role to keep North Korea in check and thus prevent the onset of a nuclear war.
He previously visited South Korea, where he emphasized the Trump administration's "resolve" on the North Korean nuclear threat, a theme he revisited in Japan as well.
Noting Trump's recent military actions in Syria and Afghanistan, Pence said, "North Korea would do well not to test his resolve" or the US armed forces in the region.
US Secretary of State Rex Tillerson will next week chair a special meeting of the UN Security Council on North Korea.
Without mincing words, the official newspaper of Pyongyang's ruling Workers' Party, the Rodong Sinmum warned that the U.S. and its regional allies like Japan and South Korea should not mess with Kim Jong-un's regime.
Pyongyang didn't respond to requests from Chinese Foreign Minister Wang Yi and Wu Dawei, the country's top envoy for North Korean nuclear affairs, to meet with their North Korean counterparts, according to the people, who asked not to be identified because the discussions were private.
Security analyst Wang Xiangsui of China's Beihang University said China is opposed to military conflict on the Korean peninsula and to North Korea being nuclearized.
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