The name of the detained person is not being reported. According to the agency, he was living in one of Stockholm neighborhoods.
A friend of man told that "he never spoke about politics or religion, but only about how to get more work and send money to his family" (he has four kids according to her). She also claimed that she does not believe in his involvement in the incident.
Agency also writes that the propaganda materials of terrorist organization "Islamic State" were allegedly found on Facebook of the detained person; the suspect reportedly liked the photo made right after the explosion at Boston marathon in 2013.
Later Reuters reported that Swedish police detained another suspect in the case. It was informed that he is connected with the first one, who was detained earlier.
As it was reported earlier, a truck ran into crowd of people in Stockholm downtown on Drottninggatan major pedestrian street. According to police information, four people were killed, 15 got injured.
Swedish Prime Minister Stefan Lofven said "Sweden has been attacked, everything indicates this is a terror attack".