GENEVA, Switzerland, Dec. 10 (UPI) -- The alert level has been raised in Geneva, Switzerland, as authorities throughout Europe continue to hunt down suspects linked to the deadly terror attacks in Paris.
Swiss police said they acted on information of suspicious individuals believed to be in the city or in the surrounding area. Investigations are being carried out to "locate and arrest these individuals."
It is unclear if the suspects in Geneva are directly related to the Paris attacks. The number of police officers on Geneva's streets has been raised and security at the border between France and Switzerland has been increased.
Salah Abdeslam, a main suspect in the Islamic State's coordinated attacks in Paris that killed at least 130 people, is still on the run. French intelligence authorities believe he has successfully escaped to Syria. Abdeslam, 26, is the 10th and only living suspect directly involved in the Paris attacks.
Meanwhile, father of Foued Mohamed-Aggad, one of the militants accused of carrying out the Nov. 13 attacks, said he did not know his son returned to France after visiting Syria.
Said Mohamed-Aggad said that if he knew, he would have not let his son become involved with the other IS militants.
"I would have killed him beforehand," he said in an interview with France's BFMTV.
Foued Mohamed-Aggad, 23, was identified by French officials on Tuesday as the third attacker who opened fire at the Bataclan concert theater, where the majority of the victims were killed Nov. 13.
He and two others, identified as Omar Ismail Mostefai, 29, and Samy Amimour, 28, are accused of a shooting rampage at the Bataclan. All three, who have been confirmed as French nationals, detonated their suicide vests at the end of the assault that killed 90 people.