Ukraine attacked a small service ship involved in planned repair works at the key Caspian Pipeline Consortium (CPC) oil terminal in the Black Sea, a person with knowledge of the matter said. The facility is vital to Kazakhstan's crude exports. The Nefrit had almost completed works at one mooring and was set to start replacing some equipment at another, the person said on condition of anonymity as the information is not public.

The attack puts the scheduled works in limbo and raises uncertainty over CPC's future crude-loading operations, the person said.