Zimbabwe’s government on Saturday ordered banks to stop lending with immediate effect in a move Harare said was designed to prevent speculation against the Zimbabwean dollar and was part of a raft of measures to arrest its rapid devaluation on the black market.

The southern African country reintroduced a local currency in 2019 after abandoning it in 2009 when hyperinflation hit it.

However, the Zimbabwean dollar, which is officially quoted at 165.94 against the U.S. dollar, has continued to slide on the black market, trading between 330 and 400 to the greenback.

At the beginning of the year, the black-market exchange rate moved from 200 Zimbabwe dollars.

President Emmerson Mnangagwa on Saturday announced measures he said were meant to arrest the currency’s depreciation, which he said threatened Zimbabwe’s economic stability.

“Lending by banks to both the government and the private sector is suspended with immediate effect, until further notice,” Mnangagwa said in a statement.

He accused unnamed speculators of borrowing Zimbabwe dollars at below-inflation interest rates and using the money to trade in forex.

Other measures include an increased tax on forex bank transfers, higher levies on forex cash withdrawals above $1,000, and the payment of taxes which used to be charged in forex in local currency.

The devaluation of the Zimbabwe dollar’s black market exchange rate, which is used in most financial transactions in the economy, has been driving up inflation.