Prague  - Luxembourg Prime Minister Jean-Claude Juncker Thursday called on the European Union to back bloc's members that face a threat of being put on an international black list of tax havens.

"I can't imagine for a single second that the European Union would agree to placing Belgium, Austria and Luxembourg on a list of countries against which it is necessary to adopt sanctions," he said through an interpreter during his Prague visit.

Brussels - European Union leaders are set to agree on a 200- billion-euro (265-billion-dollar) shot in the arm for the bloc's struggling economy, Luxembourg Prime Minister Jean-Claude Juncker said Thursday.

"I expect that we will reach an agreement on the volumes proposed by the European Commission," Juncker, who also acts as the powerful chairman of the group of countries that share the euro, told Deutsche Presse-Agentur dpa.