Greece held on Tuesday a successful new treasury bills auction, raising a further 1.3 billion euros (1.67 billion U.S. dollars), the Greek Public Debt Management Agency (PDMA) announced.

The three-month bills auctioned were sold at an interest rate of 4.34, marginally higher than the 4.2 secured during a previous sale in April.

Tuesday's auction was conducted as Greek political leaders were trying to form a national unity government following the May 6 general elections to lead the debt-ridden country out of the severe economic crisis that started in late 2009.

Over the past two years, Greece has been kept afloat with multi-billion euro rescue loans granted by European Union counterparts and International Monetary Fund.

In parallel, the country runs a monthly treasury bills sale program to raise additional funds to cover its financing needs and avoid a chaotic bankruptcy that could destabilize the entire euro zone and hit global economy. (1 euro = 1.29 U.S. dollars)