LUXEMBOURG (Reuters) - The European Commission will discuss the European Union's relations with Switzerland at its next meeting on Tuesday, but does not expect to take any decisions at this stage, a Commission spokeswoman told a regular briefing.

Swiss ties with the European Union, its biggest trading partner, face a critical test this week as Brussels should decide whether the two sides have made enough progress on a stalled draft treaty to head off punitive measures on Swiss bourses set to start at the end of June.