SEOUL, South Korea — North Korea claimed Wednesday to have placed a spy satellite into orbit with its third launch attempt this year, demonstrating the nation’s determination to build a space-based surveillance system amid protracted tensions with the United States.

The North’s claim could not immediately independently be confirmed. Observers doubt whether the satellite is advanced enough to perform military reconnaissance. But the launch still invited strong condemnation from the United States and its partners because the U.N. bans North Korea from conducting satellite launches, calling them covers for tests of missile technology.

The North’s space agency said its new “Chollima-1” carrier rocket accurately placed the Malligyong-1 satellite into orbit Tuesday night, about 12 minutes after liftoff from the country’s main launch center.

The National Aerospace Technology Administration called the launch a legitimate right of North Korea to bolster its self-defense capabilities. It said the spy satellite would help improve the North’s war preparedness in the face of “the enemies’ dangerous military moves.”

The agency said leader Kim Jong Un oversaw the launch at the scene and congratulated scientists and others involved. It said North Korea will launch several more spy satellites to better monitor South Korea and other areas.

U.S. National Security Council spokesperson Adrienne Watson said Washington condemned North Korea for the launch, saying it “raises tensions and risks destabilizing the security situation in the region and beyond.” She said the launch involved technologies directly related to North Korea’s intercontinental ballistic missile program.

South Korea said the launch would push it to suspend a 2018 inter-Korean tension-reduction agreement and resume front-line aerial surveillance of North Korea. Japanese Prime Minister Fumio Kishida called the launch “a serious threat that affects the safety of the people” and said Japan lodged a protest with North Korea condemning it in the strongest terms.

According to South Korean and Japanese assessments, the rocket carrying the satellite flew from the Korean Peninsula’s west coast and over the Japanese island of Okinawa toward the Pacific Ocean. The Japanese government briefly issued a J-Alert missile warning for Okinawa, urging residents to take shelter.

A spy satellite is among the key military assets coveted by Kim, who wants to modernize his weapons systems to cope with what he calls escalating U.S.-led threats. North Korea’s attempted launches earlier this year ended in failure due to technical issues.

North Korea had vowed a third launch would take place in October. South Korean officials have said the delay until now occurred likely because North Korea was receiving Russian technological assistance for its spy satellite launch program.

North Korea and Russia, both U.S. adversaries that are increasingly isolated globally, have been pushing hard to expand their relationships in recent months. In September, Kim traveled to Russia’s Far East to meet President Vladimir Putin and visit key military sites, touching off intense speculation of a weapons deal.

The alleged deal involves North Korea supplying conventional arms to refill Russia’s ammunition stock drained in its war with Ukraine. In return, foreign governments and experts say that North Korea seeks Russian help in enhancing its nuclear and other military programs.

Russia and North Korea dismissed the allegation of their arms transfer deal as groundless. Such a deal would violate U.N. bans on any weapons trading involving North Korea.

Leif-Eric Easley, a professor at Ewha University in Seoul, said Tuesday’s launch makes some issues clear.

“This is not a one-off event but part of a North Korean strategy of prioritizing military capabilities over economic development, threatening rather than reconciling with South Korea and further aligning with Russia and China instead of pursuing diplomacy with the United States,” Easley said.

Since last year, North Korea conducted about 100 ballistic missile tests in a bid to establish a reliable arsenal of nuclear weapons targeting the U.S. and its allies.

But the experts say that possessing a rocket that can place a satellite into orbit would mean North Korea can build a missile capable of carrying a warhead with a similar size of the satellite.

In written responses to questions from Associated Press last week, South Korean President Yoon Suk Yeol said the North’s successful launch of a reconnaissance satellite “would signify that North Korea’s ICBM capabilities have been taken to a higher level.”