Around 500 anti-nuclear demonstrators formed a human chain in front of the headquarters of the BKW energy company in Bern on Tuesday morning.
The peaceful protest took place on the 25th anniversary of the Chernobyl catastrophe. Its supporters included the Berne Declaration non-governmental organisation, the centre-left Social Democratic Party, the Green Party and Greenpeace.
Demonstrators have camped out in front of the building for three weeks demanding the closure of the nearby Mühleberg nuclear power station, one of five in Switzerland.
The 1986 Chernobyl catastrophe in what is now Ukraine is still considered to be the world’s worst civilian nuclear disaster.
swissinfo.ch and agencies