Swiss authorities said Saturday that two people of Syrian origin had been arrested on suspicion of transporting "explosives and toxic gases" as part of a probe into a terror threat.
Several Swiss media reported Friday that two people had been arrested in the Geneva region and that traces of explosives were found in their car, as the western city remained on alert due to an increased jihadist threat.
The Geneva region raised its alert level to three on a five-point scale on Thursday, and armed police were deployed at sensitive locations across the city, which is home to the UN's European headquarters.