Two vehicles owned by the Circus Knie caught fire in Nyon in the early hours of Sunday morning.
Police say they believe the fire was intentional - but the circus was not the target.
It had been set up on the Place Perdtemps.
The fire broke out far away from the marquee and the animals. No one was hurt.
Vaud cantonal police say they think a nearby construction site was the objective of the arsonists.
Fire council faces investigation
Prosecutors investigating the Crans-Montana fire are now turning their attention to members of the municipal council.
A1 widening off the table
The transport minister Albert Rösti has made his priorities clear - and widening the A1 between Lausanne and Geneva is not happening anytime soon.
Is skiing now too exclusive?
Is skiing now an exclusive sport?
Aldi now to close flagship store
What’s happening with the discount supermarket Aldi in Switzerland?
Fake officers attach car dealers
Suspected fake police officers have been arrested after a series of violent robberies at autoroute service areas.
Punk fest this weekend - with a major headliner
This weekend is shaping up loud and fast in Geneva. The 5th edition of Recluses Fest kicks off tonight and Saturday at the Alhambra, with the first wave of concerts and a seriously international punk-rock lineup.
