A UK court has landed exiled Oslo Marine Group (OMG) owner Vitaly Arkhangelsky with a "considerable" costs bill of £13.6m ($17.3m).

The ruling comes after he lost a complex high court case in May against Bank of St Petersburg (BSP) in a row over loan guarantee defaults worth $90m.

Nearly two years after the 46-day trial ended in the UK high court, Justice Robert Hildyard delivered a judgement allowing the lender to recover its money and dismissing "ultimate chancer" Arkhangelsky's $500m counterclaim that BSP illegally appropriated OMG's assets in 2009.