The rate on access operations to provide liquidity was kept at 14.5 percent and the rate on access operations to withdraw liquidity - at 12.5 percent.

The agency said that a strong fiscal position, significant external reserves, favourable situation in the oil market were credit rating supporting factors.

The changes are coming fast, weeks after deadly riots jolted the ex-Soviet state, with key resignations and longstanding institutions undergoing being modified or overturned.