Several injured after shots fired at event in Switzerland's Aarau

BREAKING: Several people injured after shots fired at an event in Aarau, Switzerland.

Shots have been fired at an event in Aarau, Switzerland, and several people are injured.

Aarau is a quiet cantonal capital in the north of the country, about forty minutes from Zurich, not a place accustomed to news like this. These pictures show the scene overnight, police vehicles on the street and emergency responders working around a cordon.

Details at this hour are thin. We don't yet know what kind of event was being held, how many people were hurt, how badly, or whether anyone is in custody. Swiss police have not released more, and we won't fill that silence with guesswork.

What we can say is this. Gun violence of any kind is rare in Switzerland, and rarer still at a public gathering. Several people went to an event last night and left in ambulances. We'll bring you more as police confirm it.

This is Sara White, reporting for HIT.