The euro fell to a fresh session low against the dollar on Thursday as investors digested news that German Chancellor Angela Merkel will not address the German parliament before she departs for the Brussels summit.

A high-profile EU summit will go ahead on Sunday as planned, according to sources in Germany's ruling coaltion, but it will not reach a decision on leveraging the euro zone rescue fund, the European Financial Stability Facility(EFSF).

The euro was last down 0.6 percent at $1.3677 after going as low as 1.3655 , according to Reuters data.