Brazilan police say they have arrested a man trying to deliver more 20 hand grenades and other weapons to a notorious criminal organization.

Police officer Alexandre Ferreira says the man had purchased 23 hand grenades, a grenade launcher, a 9mm pistol and ammunition in neighboring Paraguay and was carrying them by bus to Rio de Janeiro.

Ferreira says the man "was going to sell the weapons to the Red Command," the name of a violent drug gang that operates in several Rio slums.

He says police found the weapons during a routine search for drugs and contraband goods on buses coming from Paraguay.