...Rezabek said on Wednesday, news agency CTK reported.
Rezabek told the parliament's budget committee that the central bank was concerned and may react in the future.
Rezabek also said he did not expect global market turmoil set off by the subprime mortgage crisis in the United States to have an impact on the Czech economy, the agency said.
The comments were in line with the minutes from the central bank's Aug. 30 meeting, released last Friday.
In the minutes, the central bank said the labour market may be becoming a bottleneck in the economy.
The bank raised the key two-week repo rate by 25 basis points to 3.25 percent at that, the third hike in four months.
The average Czech monthly wage rose 4.9 percent year-on-year in real terms in the second quarter to 21,462 crowns ($1,079).