North Korea has unveiled for the first time what it says is a nuclear-powered submarine under construction, a weapons system that can pose a major security threat to South Korea and the US.

North Korea announced it is building its first nuclear-powered submarine, marking its latest effort to strengthen military leverage over the West after diplomatic relations between Washington D.C. and Pyongyang soured following a failed 2019 summit.

North Korean leader Kim Jong Un inspected a project to build a nuclear-powered submarine, state media reported Saturday, saying that "radically" boosting the navy was a key part of Pyongyang's

South Korean President Yoon Suk Yeol, who lawmakers voted to impeach, was released from detention Saturday after spending nearly two months in custody under a criminal probe for his martial law declaration.

South Korea’s impeached President Yoon Suk Yeol has been released from prison a day after a Seoul court canceled his arrest to allow him to stand trial for rebellion without being physically detained

South Korean President Yoon Suk Yeol left a detention centre in Seoul on Saturday, after prosecutors decided not to appeal a court decision to cancel the arrest warrant of the impeached leader.