SEOUL -- Investigators are in the advanced stages of a probe into a South Korean-flagged oil tanker suspected of illicitly supplying 4,300 tons of petroleum products to North Korea through ship-to-ship transfers, it was learned on Wednesday.
The South Korean Coast Guard have held the P-Pioneer at a port in Busan since October, marking the first time a South Korean-flagged vessel has been detained for suspected violations of a United Nations Security Council sanctions resolution.



