Voters in Luxembourg have approved the proposed European Union Constitution in a referendum Sunday - reversing a trend set by France and the Netherlands last month.

With all the votes counted, the charter was approved by nearly a 13-point margin, of about 57 to 43 percent.

Prime Minister Jean-Claude Juncker, a staunch supporter of the pact, had promised to resign if it was not approved.

This was the first referendum on the constitution since French and Dutch voters rejected it last month. EU leaders then put the constitution issue on hold, and Britain, Denmark, Portugal, Sweden and Finland postponed planned votes.

All 25 member nations must approve the constitution before it can take effect.

Some information for this report provided by AP and AFP.