The Unification Ministry says the South Korean fishing vessel and crew North Korea detained last month have been freed after 30 days in custody.

The ministry said North Korea followed through on its promise to release the “800 Yeonan-ho” vessel and its four fishermen in the East Sea on Saturday at 5 p.m.

A Seoul official says the Korea Coast Guard gained custody of the ship and crew near the East Sea Northern Limit Line.

On July 30th around 5 a.m., the 29-ton squid-catching vessel crossed 13 kilometers into North Korean waters while it was fishing northwest of Jejin, Gangwon Province, due to an error in its global positioning system. It was then detained by a North Korean patrol boat.