The European Union will extend by six months its main economic sanctions on Russia over the conflict in Ukraine after the bloc’s leaders meet in Brussels on Dec. 15, diplomatic sources and officials said, Reuters reported.

The sources said Paris and Berlin will briefly inform other EU leaders about the situation when they meet next week for their last joint summit in Brussels of the year.

There is no doubt that sanctions measures will be prolonged beyond their current expiry date of end-January, they said.

The formal procedure to do that should conclude around Dec. 20, the sources added.