The central bank bought treasuries from four lenders and will sell them back February 27.
Last week, the central bank pumped RON4.5 billion into the market in a similar operation.
Central bank governor Mugur Isarescu said recently that the bank has been adding liquidity to the market on a regular basis because some of the local lenders have difficulties borrowing from their peers.
The central bank has been injecting cash into the market every week since October 17 last year.
However, Monday’s total was the lowest amount injected by the central bank in a repo auction since the beginning of January.
On the money market Monday morning, overnight rates were flat on the day at 1.7%-2.2% a year, but weekly rates were rising to 3.2%-3.7% a year, from 2.4%-2.9% a year on Friday.