We have been able to talk to him, says the police's press spokesperson Ola Österling.
The injured man was taken to hospital in an ambulance. His condition is not known.
The shooting drama occurred in connection to the subway station and many witnessed the incident.
A number of police patrols are now searching for the shooter, who ran from the scene. The police have decided that the subway's red line will not stop at Alby's station. The stop applies in both directions.
The crime scene has been cordoned off for a technical examination.
The alarm about the shooting came at 18.15 on Friday.
