The president, Guy Parmelin, returned from Brussels empty handed after talks with the EU.
Switzerland is trying to negotiate a new all-encompassing framework agreement with the bloc. But there were too many differences to bridge.
Parmelin told the SonntagsBlick newspaper that the government would only sign an agreement when it was satisfactory for Switzerland.
Unions say any agreement must protect wages. But the head of the Swiss Trades Union, Pierre-Yves Maillard, says talks must continue.
Heat to stay for now
Growing anger over World Cup red card
Fire damages trees in the Jardin Anglais
Cows sweltering in the heat
Lake Geneva nudists fight for their lake section
Holiday makers seek more than the sun
