MOSCOW, Dec 21 (Reuters) - Russia on Thursday promised to respond in kind should the European Union go ahead with a plan to ringfence profits generated from Russia's frozen assets in the EU and hand them to Ukraine.

The EU is proposing using the income generated from around $300 billion of frozen funds from Russian central bank reserves - and could ultimately collect around $16 billion.

"We also have enough assets that are frozen here, in type-C accounts," Finance Minister Anton Siluanov said in an interview on the Russia 24 TV channel.

"The figures are not small, the income from using these funds is substantial and can certainly also be used if a decision is made by our unfriendly partners," he said.

Western sanctions over Moscow's February 2022 invasion of Ukraine and subsequent Russian countermeasures have stranded billions of dollars' worth of assets.

Prosecutors in Germany on Wednesday said they would move to confiscate more than 720 million euros ($790 million) from the Frankfurt bank account of a Russian financial institution.

A source familiar with the matter told Reuters the institution was the National Settlement Depository (NSD), the domestic payments agent owned by Moscow Exchange, which plays an important role in Russia's financial system as a key intermediary with international markets. (Reporting by Darya Korsunskaya and Alexander Marrow; Editing by Kevin Liffey)