SEOUL:  North Korea pulled its staff out of an inter-Korean liaison office Friday, Seoul said, weeks after leader Kim Jong Un's summit with US President Donald Trump ended without agreement.

The office in the Northern city of Kaesong was opened in September as the two Koreas knitted closer ties, but the South's vice unification minister Chun Hae-sung told reporters Pyongyang had 'notified the South they are pulling out of the liaison office.'