Bus crash in Sweden's capital Stockholm causes several casualties

A blue bus sits damaged on a road with two yellow street lights illuminating the scene

The bus crashed in Ostermalm in Sweden's capital Stockholm. (TT News Agency/Henrik Montgomery via Reuters)

In short:

Swedish authorities have said a bus crash in Stockholm has caused several casualties.

The empty bus ploughed into a bus stop in the Östermalm district, in the city's north.

Police were treating the crash as "involuntary manslaughter" but were still investigating.