Six-month bills worth EUR 32.2m were sold at a nominal annual interest rate of 1.7%, as well as EUR 23.8m of 12-month bills with 2.99% interest, the Finance Ministry said.

This compares to the mid-March oversubscribed issue of EUR 111m-worth of 3- and 6-month bills with nominal annual interest of 0.49% and 1.5% respectively.

The Finance Ministry told the STA the EUR 100m target was just a "framework amount". "The accepted offers provided sufficient budget liquidity at acceptable interest rates," it said.

With interest rates on treasury bonds recently surpassing 6%, Slovenia has been financing expenditure mostly with T-bills.

However, it is projected to need EUR 3bn in financing to roll over debt due this year.