Footage from a Russian cargoship has shown how it managed to steer into a Korean bridge last week.
The 9,700-dwt Seagrand (built 1986) took a chunk out of the Gwangan Bridge as it left the southeast port of Busan on Thursday.
The master was found to be over the limit for alcohol, but claimed he started to drink after the collision, the Yonhap news agency reported.
The rampage began earlier in the day, with the bridge video and audio revealing panicked shouting on board and a cry of "Rope" before the ship hits three small pleasure boats anchored at a jetty.
A voice is heard saying to the vessel traffic authorities (VTS) : "We need two tug. No collision. No collision."
Then another voice on the ship says "Stop machine".
The footage then switches to a little later on in the doomed voyage as the vessel heads to the bridge.
Two seafarers can be seen running along the deck away from the impending impact, before a structure at the bow is bent back by the smash.
VTS orders vessel to halt
The ship's bridge appears a relatively calm place as it crashes into the structure.
It then backs away from the span, with VTS demanding: "Stop engine. Now drop anchor."
The Korean Coast Guard said on Tuesday that the captain's misjudgement was to blame, due to alcohol and improper steering.
Three crew were reportedly injured in the incident.
The coast guard said the accident could have been prevented if the master had steered the ship to port at a low speed after colliding with the yachts.
Instead he headed to starboard at high speed.
The captain was reported to have a blood alcohol content of 0.086%, against the legal limit of 0.03%.
The ship was bound for Vladivostok with steel coils onboard.
It is listed as managed by Grand Marine Co of Vladivostok.
