Rome, January 22 - Police on Friday conducted searches and arrested 14 alleged members of Calabria's 'Ndrangheta mafia, accused of crimes related to international drug trafficking. Of the 14 arrested in the towns of Gioiosa Ionica, Rosarno and Siderno, eight were sent to jail and six were placed on house arrest. One of the arrest warrants was for currently incarcerated Commisso clan boss Giuseppe Commisso, who is serving 14 years for mafia association. In 2010, investigators placed audio bugs inside the Apegreen laundromat that Commisso managed in Siderno, which they say was the group's operational base. The hours of conversations they recorded became the basis for an investigation that closed with 300 arrests, as well as the operation that led to Friday's arrests. Based on those conversations, investigators said the clan was operating in international drug trafficking in Belgium, the Ivory Coast, and Venezuela.