Swedish security police arrest suspected spy

Swedish security police have arrested a suspected spy who's alleged in newspaper reports to have passed information on to Russia.

Police have refused to give any details about the detainee but the Justice Ministry says the case involves Sweden's national security.

The arrest, which comes a month before a visit to Sweden by the Russian President, Vladimir Putin, is the first espionage case involving Russia in more than two decades.

From the newsroom of the BBC World Service