Three people were killed in a shooting in the Swedish city of Uppsala on Tuesday and a murder investigation has been launched, police said, Reuters reported.

Police said it was investigating the shooting as a homicide and that it had no information about the incident being a terror or hate crime at this point.

"We have information that a person left the scene on an electric scooter," a police spokesperson told Reuters. "Whether this person is a perpetrator or a witness, or someone who has some connection to the incident, it is unclear at this time."

Police said the victims were yet to be identified and declined to speculate on the motive for the killings, according to Reuters.