Paris, July 23 (QNA) - French 10-year Treasury bond yields rose today to their highest level since 2009, after exceeding the 4 percent threshold, amid growing concerns over inflation and the cost of servicing public debt due to rising energy prices.

The French bond yield reached 4.014 percent during trading before slightly falling back below 4 percent, while the German 10-year bond yield stood at 3.20 percent, its highest level since 2011.

The rise in bond yields comes as France faces increasing pressure due to the size of its public debt, which has reached a record level equivalent to about 117 percent of GDP, exceeding 3,500 billion euros, thereby increasing the cost of interest on public finances.

These yields reflect the interest rate demanded by investors to lend to governments, with their rise leading to higher borrowing costs and debt servicing.