The world's largest yacht, associated with Russian billionaire Usmanov, has been confiscated by Germany.

• Official confirmation has been received that the world's largest superyacht has links to Russian billionaire and business tycoon Alisher Usmanov, leading to its seizure by German authorities.
• German authorities initially restricted the superyacht named Dilbar from leaving its anchorage in Hamburg on March 3.
• The yacht measures over 500 feet and features two helipads and the largest indoor swimming pool ever installed on a private ship.

German authorities have confiscated the world's largest superyacht due to its ties to Russian billionaire Alisher Usmanov.

On Thursday, a German official confirmed to CNBC that the motor yacht in question was linked to Usmanov and was therefore subject to asset seizure. According to Germany's federal police, a thorough investigation conducted on Wednesday found that the vessel was owned by Usmanov's sister, Gulbakhor Ismailova.

According to a senior Biden administration official, the superyacht was initially restricted from leaving its anchorage by German authorities on March 3.

The yacht was not physically seized in Hamburg, but it was not allowed to move from its current location. The official stated that more measures would be taken later.

Usmanov's yacht, named after his mother, is over 500 feet long and has two helipads and the largest indoor swimming pool ever installed on a private vessel. The Department of Treasury estimates that the current value of Usmanov's yacht is approximately $735 million.

In March, the U.S. and its allies targeted Usmanov and his superyacht with coordinated global sanctions on Russian elites with Kremlin ties due to Russia's invasion of Ukraine on Feb. 24.

According to an anonymous Treasury official, any action taken by German authorities will not result in the transfer of the vessel to the United States under Treasury's Office of Foreign Assets Control, or OFAC, sanctions.

Any transactions related to Usmanov's yacht, including maintenance, crew hiring, and docking fees, conducted with U.S. persons or in U.S. dollars are prohibited due to the U.S. sanctions listing the yacht as blocked property.

Since Russia invaded Ukraine, the latest vessel to be seized is a $90 million mega-yacht owned by billionaire Viktor Vekselberg, who was born in Ukraine but founded the massive Russia-based conglomerate Renova Group.

Igor Sechin, a Russian billionaire and CEO of state oil company Rosneft, had his massive yacht seized by French authorities on March 2, according to reports. Sechin previously served as Russia's deputy prime minister under President Vladimir Putin.

Previously, the Italian authorities seized the yacht known as The Lady M, which belonged to Russian billionaire Alexei Mordashov.

— CNBC’s Brian Schwartz contributed reporting from New York.