07/22/2015 01:40 EDT | Updated 07/21/2016 05:59 EDT

One person in custody after three people stabbed at Edmonton fairgrounds

EDMONTON - Edmonton police are investigating the stabbing of three people on the midway at the city's annual Klondike Days fair.

Police say one person suffered serious injuries but none of the stabbings are considered life-threatening.

They say they have one person in custody and are looking for two more people believed to be involved.

Investigators are looking at surveillance video from the scene to piece together what happened.

(CTV Edmonton)