India, Aug. 16 -- The euro declined against its major counterparts in the European session on Friday on increased hopes of stimulus measures from the European Central Bank next month following comments by policymaker Olli Rehn.

Rehn, who is also the Governor of Finland central bank, said that the ECB was preparing a 'very strong package ' that could exceed market expectations at its next monetary policy meeting in September.

"It's important that we come up with a significant and impactful policy package in September," Rehn said in an interview with the Wall Street Journal on Thursday.

"When you're working with financial markets, it's often better to overshoot than undershoot, and better to have a very strong package of policy measures th...