Police on Saturday arrested six Arab nationals on charges of robbing several computer and mobile phone shops in the city. The modus operandi of the gang, according to the police, was that the thinnest member would sneak into the locked shop and unbolt it from inside so that the others could enter. Sources said the suspects were experienced in opening and breaking locks. The gang was busted with the arrest of three of its members, who were selling stolen goods to shopkeepers at low prices.