A Russian general cargoship suffered extensive hull damage in a UK grounding after a pilot lost positional awareness, a report has found.

The Maritime Accident Investigation Branch (MAIB) said the 1,700-dwt Celtica Hav (built 1984) grounded on a training wall in the approach channel to the River Neath, Wales, on 27 March last year.

It was quickly refloated but suffered water ingress to several ballast tanks and flooding in the engine room.