WRAPUP 7-South Korea, U.S. fire missiles to protest 'reckless' North Korean test

(Adds Russian comment and U.S. U.N. ambassador)

By Joori Roh, Josh Smith and Michelle Nichols

SEOUL/UNITED NATIONS, Oct 5 (Reuters) - South Korea and the U.S. military conducted rare missile drills and an American supercarrier repositioned east of North Korea after Pyongyang flew a missile over Japan, one of the allies' sharpest responses since 2017 to a North Korean weapon test.

U.S. Secretary of State Antony Blinken warned that nuclear-armed North Korea risked further condemnation and isolation if it continued its "provocations."

However, Russia's deputy U.N. envoy told a U.N. Security Council meeting called by the United States that imposing sanctions on North Korea was a "dead end" that brought "zero result," and China's deputy U.N. ambassador said the council needed to play a constructive role "instead of relying solely on strong rhetoric or pressure."

North Korea test-fired an intermediate-range ballistic missile (IRBM) farther than ever before on Tuesday, sending it soaring over Japan for the first time in five years and prompting a warning for residents there to take cover.

Washington called the test "dangerous and reckless," and the U.S. military and its allies have stepped up displays of force.

South Korean and American troops fired a volley of missiles into the sea in response, South Korea's Joint Chiefs of Staff said on Wednesday, and the allies earlier staged a bombing drill with fighter jets in the Yellow Sea.

The aircraft carrier Ronald Reagan, a U.S. Navy ship that made its first stop in South Korea last month for the first time in years, will also return to the sea between Korea and Japan with its strike group of other warships. The South Korean military called it a "highly unusual" move designed to show the allies' resolve to respond to any threats from North Korea.

Speaking during a visit to Chile, Blinken said the United States, South Korea and Japan were working closely together "to demonstrate and strengthen our defensive and deterrent capabilities in light of the threat from North Korea."

He reiterated a U.S. call for Pyongyang to return to dialogue, and added: "If they continue down this road, it will only increase the condemnation, increase the isolation, increase the steps that are taken in response to their actions."

The U.N. Security Council met on Wednesday to discuss North Korea despite China and Russia telling council counterparts they were opposed to an open meeting of the 15-member body.