The Swedish Civil Aviation Administration wants better radar to be able to see all air traffic, after an incident Friday in which a Russian military plane is reported to have flown too close to a passenger plane in international air space south of Malmö. Meanwhile, Russia said there was no risk.

Newspaper Dagens Nyheter reports that the passenger plane was likely SAS flight SK1755 heading from Copenhagen towards Poznan, in western Poland, which got directions to change course at the last minute to avoid colliding into a Russian military plane, which was flying with its transponder off. (SAS denies the passenger...