"We appreciate the challenging time in which the people of Japan live with increasing provocation across the Sea of Japan", Pence said in Tokyo before a lunch with Abe.
"We'll be conducting more missile tests on a weekly, monthly and yearly basis", Vice Foreign Minister Han Song-Ryol said in an interview with the BBC yesterday.
Russian Federation has blocked the UN Security Council from condemning North Korea's latest missile test even though China had backed the strongly-worded statement drafted by the United States, diplomats said.
U.S. Vice President Mike Pence and Japanese leaders began talks Tuesday expected to focus largely on trade with America's anchor ally in the region, though tensions with North Korea loomed large.
Tensions between Washington and Pyongyang have seen a recent upsurge, with US Vice President Mike Pence describing North Korea as "the most unsafe and urgent threat to peace and security" in the Asia-Pacific.
"It is our belief by bringing together the family of nations with diplomatic and economic pressure we have a chance of achieving a freeze on the Korean Peninsula", Mr Pence said.
U.S. Ambassador to the UN Nikki Haley stressed that the burden is on North Korea to prevent an escalation.
15 April: North Korea puts on a huge military parade - complete with missiles - to mark 105th birthday of the nation's founding president, Kim Il-sung. Instead, it tested a missile Sunday, which was said to have failed.
Chinese sanctions alone will not immediately force North Korea to give up its nuclear weapons, and Washington also must provide a security guarantee, the editorial said.
North Korea accused the United States of creating a situation in which "a thermonuclear war may break out at any moment", as hundreds of American troops began 11 days of joint military exercises with its southern neighbour. North Korea says whatever action the U.S. may take, it will respond in kind. He did not comment on what might have caused the missile to fail.
Another official, speaking on condition of anonymity to discuss an intelligence matter, said the missile was a Scud variant that the US calls a KN-17.
Earlier on Tuesday North Korea accused the United States of bringing the Korean Peninsula into "a risky situation in which a thermonuclear war may break out at any moment". But no one was predicting what might come next.
President Trump campaigned against the TPP, a long-negotiated multilateral trade deal that former President Barack Obama supported.
During his appearance in South Korea, Pence also said previous administrations have practiced "strategic patience" in the region and vowed that the "era of strategic patience is over".
Pence arrived in South Korea Monday as part of his 10-day, four-nation Asia tour that will also take him to Tokyo, Jakarta and Sydney in what many view as war moves, accompanied by an aircraft carrier strike group that the United States has sent to the region. However, North Korea didn't respond to Wu's request to visit Pyongyang, according to South Korea's Yonhap news agency.
On April 9 North Korea attempted to launch a new test missile. China's top negotiator for North Korea's nuclear program, Wu Dawei, held talks on the missile shield and North Korea's recent actions during a visit to Seoul last week.
Russian foreign minister Sergey Lavrov warned the U.S. against "unilateral actions like those we saw recently in Syria" and urged the United States to "follow the line that president Trump repeatedly voiced during the election campaign".