“The Geneva authorities received yesterday afternoon from Confederation reporting of suspicious individuals likely to be in Geneva or in the Geneva area”.
The individuals were not believed to have any direct link to the Paris atrocities.
Senior U.S. and Russian diplomats are set to hold talks on Syria in Geneva on Friday, but the United Nations said the location would be kept secret.
Police were also increasing their counterterrorism vigilance level, and were working with worldwide and national authorities to locate the suspects, the statement said.
Geneva is just over 500 kilometres (310 miles) from Paris and the Swiss city is nearly entirely enclosed by France, with border crossings often unmanned.
But there did not appear to be a massive mobilisation of security personnel across the city, according to AFP journalists. Police officers have been boosting the threat level & reinforcing “agents on the ground”, the assertion stated. One of the suspected attackers, the Belgian Salah Abdeslam, is still on the run. The Swiss Attorney General’s office is now conducting 33 criminal proceedings linked to Islamist militancy, and opened almost a dozen new investigations in October and November, a spokeswoman said.