A French shipyard says it doesn't know who to bill mooring fees for a detained $120 million superyacht linked to a Russian oligarch

• A $120 million superyacht linked to a Russian oligarch was seized at La Ciotat, France, in early March.
• La Ciotat Shipyards told Reuters it's unsure who to bill for the yacht's mooring fees.

A French shipyard has said it doesn't know who to bill for mooring fees racked up by a detained $120 million superyacht.

Alice Boisseau, communications officer at La Ciotat Shipyards, told Reuters her company was "continuing to invoice" mooring fees for the detained yacht, Amore Vero, but said the company doesn't know who's meant to pay.

Amore Vero is owned by a company headed by Igor Sechin, CEO of Russian oil giant Rosneft, according to French authorities, who said they detained the 280-foot vessel on March 3. Sechin denied to Reuters that the yacht belonged to the company.

Amore Vero is worth around $120 million and can hold a total of 42 guests and crew members, according to SuperYacht Fan. It features a swimming pool that converts into a helicopter pad and a sun deck with a jacuzzi, according to Oceanco, its maker.

Two firms that are servicing the Amore Vero told Reuters that French authorities hadn't told them about the yacht's legal status after the seizure, meaning there was no clarity on who was meant to pay for mooring or other servicing fees.

French officials said the Amore Vero's owner was responsible for covering mooring and maintenance costs at a time when the state had custody of the vessel, Reuters reported.

La Ciotat Shipyards didn't immediately respond to Insider's request for comment.

The Amore Vero's seizure came soon after Sechin was placed on EU and US sanctions lists following Russia's invasion of Ukraine.