Authorities have arrested another man suspected of belonging to a group that allegedly discussed carrying out attacks during the Olympics, Brazilian police said Saturday. Security has emerged as the top concern during the Olympics, including the possibility of violence spilling over from Rio's hundreds of slums. The man arrested Friday is one of two additional suspects that Moraes said were being sought. The Federal Police Department said in a brief statement posted on its website that the man turned himself in Friday night in the central-western state of Mato Grosso. Officials did not raise the country's terror alert level Thursday following the raids in Brazil.

Source: ABC News July 23, 2016 18:00 UTC