We will hold on. It's hard, but we won't give up," said Rinat Akhmatov, the richest oligarch in Ukraine and a resident of Monaco.

We will hold on. It's hard, but we won't give up," said Rinat Akhmatov, the richest oligarch in Ukraine and a resident of Monaco.

He recently purchased the most expensive house in the principality, earning money from "energy restoration. ".