The bank raised its main two-week repo rate by 25 basis points to 1.25 percent on Thursday - the third increase this year - and signalled another hike may come again soon.

Speaking to analysts on Friday, Benda said the bank still had the comfort of raising rates in 25 basis point steps and that the bank did not really debate a 50 basis point hike.

"I would not say we discussed it as a serious alternative to the final decision (on Thursday)," he said. "We are not under presssure to discuss very aggressive monetary policy tightening."