There are three vessels here, spotted arriving at Mokpo harbor: bunkering tanker "Han Sung 8" on the left, fishing boat "2020 Mit Eum" (MMSI: 440156470) in the middle and fishing boat "27 Hyeop Sin" (MMSI: 440301880).

At the moment this photo was taken, one of them was in the middle of a rather dangerous overtaking maneuver (or at least it looked that way), almost like a "seaways rage" situation.