In a Twitter post on Thursday, Maduro announced that Russia had signed investment deals worth more than $6 billion dollars in Venezuela’s oil and gold sectors.

The Venezuelan President also said that a deal had been signed for Russian exports of wheat to the South American country.

Earlier in the day, Maduro called Russia a “brother country” with which Venezuela had “raised the flag for the creation of a multipolar and multicentric world.”

Russia has become a key economic ally for cash-strapped Venezuela in recent years, though the Latin American country has often been unable to repay its debts. Last month, Reuters reported that the head of Russia’s Rosneft oil giant, Igor Sechin, flew to Caracas to pressure Maduro over late oil shipments aimed at repaying loans.