(CNN) -- Swedish police arrested two individuals Saturday suspected of preparing terrorist crimes, they said.
They were responding to information that a bomb could go off in central Gothenburg, Sweden's second-largest city, on Saturday, they said.
The information was "vague and not confirmed" but police said late Friday they "could not rule out" that it was planned to explode somewhere near Nordstan, the central shopping mall.
Heavily armed police conducted a raid early Saturday morning and took a number of individuals into custody, CNN's Swedish affiliate TV4 reported.
"Overnight we managed to narrow down the investigation to a few suspects and this morning we were able to get them all," Bjor Blixter, police spokesman told TV4.
In the afternoon the prosecutor decided to formally arrest two of them on suspicion of terrorism offenses.
The others were released but are still under investigation, according to the police statement.
The Swedish Security Police, who helped local police with the investigation, could not say whether the incident was connected with Sweden raising its terror alert recently, according to TV4.
CNN
