The police in Switzerland have launched a manhunt for four men in Geneva, who are suspected to have coordinated with the Islamic State (Isis), which is responsible for the November attacks in Paris, reports said.

According to Reuters, security has been tightened in Geneva and guards armed with MP5 sub-machine guns have been stations at the entry of the UN complex.

The police were carying out searches in several locatins to "locate and arrest these individuals". The manhunt was launched after a tipoff that the suspects were in or around Geneva.

The development has come just a day after the police released the identity of the third Isis suicide bomber at the Bataclan concert venue in Paris.

The police were able to establish the identity of the third killer after the mother of Foued Mohamed-Aggad in Strasbourg (France) received a text message from Syria stating: "Your son died a martyr on 13 November," The Associated Press reported.