WARSAW, April 9 (Reuters) - Poland's rate-setting Monetary Policy Council (MPC) backed the central bank's currency intervention, MPC member Elzbieta Chojna-Duch said on Friday.

"We have given a general permission to the bank's management board to conduct FX interventions, we will certainly discuss this at the Monday's MPC meeting," Chojna-Duch told TVN CNBC.

"We support the intervention. We believe it's justified, conducted in the right moment and prevents a long-term trend of appreciation of the Polish currency."

Earlier on Friday the central bank said it bought some foreign currencies, sending the zloty down as much as 1 percent against the euro.

(Writing by Gabriela Baczynska; editing by John Stonestreet)