North Korea fired several cruise missiles into the Yellow Sea on Tuesday, the South Korean military said, marking Pyongyang's third cruise missile launch in a week.

The missiles were fired at around 7 a.m. from the western city of Nampo, South Korea's Joint Chiefs of Staff said.

A TV screen pictured in Seoul on Jan. 30, 2024, shows news about a North Korean cruise missile launch. (Yonhap/Kyodo)

The projectiles could be the same type of new strategic cruise missiles launched last Wednesday and on Sunday, the military said, adding it is believed the purpose of Tuesday's launch was to improve the missile's capabilities.

The new missile, named "Pulhwasal-3-31," which means "flaming arrow" in Korean, is believed to be capable of carrying nuclear warheads.

North Korean leader Kim Jong Un observed Sunday's test of submarine-launched Pulhwasal-3-31 missiles and discussed issues related to the building of a nuclear-powered submarine, according to the official Korean Central News Agency.

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