A South Korean delegation on Thursday departed for Tehran to negotiate an early release of an oil tanker and its crew members seized by Iranian authorities, according to local media.
 The delegation led by Koh Kyung-sok, director-general of the Foreign Ministry's Africa and Middle Eastern affairs, left early morning along with other officials, Yonhap News Agency reported.
 Seoul has dispatched an acclaimed anti-piracy unit to the Strait of Hormuz after ...