A video of the attack on Novorossiysk with the Sub Sea Baby drone shows a calm port with several ships before a massive explosion kicks up water and debris.

Russian President Vladimir Putin declares Russia's Ukraine war goals will be achieved through negotiations or military force as diplomatic efforts.

Russian Deputy Foreign Minister Sergey Ryabkov told ABC News during an exclusive interview in Moscow on Monday that he believes the warring parties are close to a deal.

But part is because Ukraine is keeping secret the methods it hopes will help it regain a winning edge elsewhere. Participants refuse to say how they circumvented the all-seeing eyes and kill-zones of the modern battlefield.

Ukrainian "Sub Sea Baby" drones critically damage Russian submarine equipped with Kalibr cruise missiles in Novorossiysk, the Security Service said.

U.S. administration officials signaled Monday a peace deal between Russia and Ukraine may be closer than ever.

The European Union wants to impose strict “Buy European” rules on Ukraine’s potential loan backed by Russian assets, which leaders will try to finalize during a summit on Thursday.

Ukraine's internal security agency said the attack damaged and disabled a Russian Kilo-class submarine in the port city of Novorossiysk.

Russian billionaire Roman Abramovich has been given a final chance to turn over the 2.5 billion pounds ($3.25 billion) that he promised to give victims of Russia's war in Ukraine from the sale of Premier League club Chelsea,