The Federal Intelligence Service says it is monitoring the activities of 41 people who it considers a threat to the security of the country.
In a statement to the SonntagsZeitung, the service says the radical Islamic scene has been expanding in Switzerland in recent years.
It adds it believes the most likely threat is an attack by a lone individual against a weakly protected target such as a crowd or property.
But it also stresses that there is no evidence of an immediate threat at the moment.
Heat closes Geneva paddling pools
Eight of Geneva's eleven paddling pools are now closed as the city battles bacterial contamination during the heatwave.
Soaring temps hit hospitals
Hospital rooms at the Geneva University Hospital are hitting 34 degrees - with temperatures in the cafeteria up at 40.
Crans-Montana looks to summer season after fire tragedy
Crans-Montana is hoping for a broadly stable summer, more than six months after the New Year fire at the Constellation bar.
MétéoSuisse warns of budget cuts
The federal weather service is warning that government budget cuts risk making our forecasts less accurate.
Rents rise Geneva - more than Zurich
Rents in Geneva have risen 5.3% over the past year, putting the canton well above the national average of 2.5%, according to the property platform Homegate.
Better passenger rights coming
We’re going to get stronger air passenger rights, after the European Parliament voted for a major tightening of the rules.
