Two people have been injured when a letter bomb exploded at an office of the Swiss nuclear power industry in the northern city of Olten.

Swiss voters today overwhelmingly approved a move to make permanent the country’s pioneering program to give addicts government-authorised heroin.

Switzerland struggled to dig itself out today after record snowfall overnight set off avalanches, collapsed roofs, left the country’s two main motorways blocked and caused two deaths.

University experts are examining three dead swans found in central Switzerland to see if they were infected with bird flu, authorities said today.