A "suspicious" letter has been found outside a café in Copenhagen, the scene of an attack during a free speech event on Saturday.

Denmark elected its first female prime minister last night, ousting the right-wing government from power after 10 years of pro-market reforms and ever-stricter controls on immigration.

Danish voters appeared set to elect their first female prime minister today and end 10 years of pro-market reforms and a hardening of immigration laws.

The ruling pro-European coalition that led the tiny Balkan state of Montenegro to independence convincingly won early parliamentary elections, an independent vote monitoring group said.