Saskatoon police are warning driver to slow down after officers attended to 30 collisions in the city over a nine hour stretch Saturday. 

Police said more than half of those crashes happened on Circle Drive. 

No one was seriously hurt, but drivers are being asked to reduce speed since roads are slippery. Loose and blowing snow is also posing some danger.  

Extra traffic officers patrolled Circle Drive over the weekend to monitor drivers in the area.

Police advise drivers to take their time, drive defensively and make sure there's a designated driver if people are drinking.