TOLEDO, SPAIN -- Spain's Civil Guard, working with Italian police, arrested Marco Assegnati, a reputed leader of the Camorra, the Neapolitan counterpart of the Sicilian Mafia, officials said Monday.

Assegnati was on the Italian Foreign Ministry's list of the 100 most wanted mobsters.

The suspect was the subject of a Europe-wide arrest warrant for belonging to an organization engaged in trafficking drugs and arms, as well as participating in extortion schemes and other criminal activities.

The Civil Guard launched its investigation in May, using information provided by Italian police that the dangerous mob chief was living in Spain.

Investigators learned that Assegnati was living in a chalet in the central Spanish town of Escalona, where he was running his clan's criminal activities.

Assegnati had been in Spain since at least 2003 and operated an auto sales business based in Madrid.

The reputed mobster also owned a dealership in the northwestern Spanish city of Vigo, where he traveled regularly to throw both police and members of rival clans within the Camorra off his trail.