The 'Ndrangheta, a criminal organization from Calabria (Italy) has been involved in radioactive waste dumping since the 1980s. Ships with toxic and radioactive waste were sunk off the Italian coast. In addition, vessels were allegedly sent to Somalia and other developing countries with toxic waste, including radioactive waste cargoes, which were either sunk with the ship or buried on land. The introduction of more rigorous environmental legislation in the 1980s made illegal waste dumping a lucrative business for organized crime groups in Italy.
A 1995 parliamentary waste commission report spoke of the "possible existence of national and international trafficking in radioactive waste, managed by business and criminal lobbies, which are believed to operate also with the approval of institutional subjects belonging to countries and governments of the European Union and outside the EU." Its conclusions noted "interferences and threats" against investigators, and were critical of ENEA, Italy's state energy research agency, and their management of nuclear waste.
The 'Ndrangheta, an Italian mafia-type syndicate, has been accused by pentito Francesco Fonti, a former member of 'Ndrangheta, of sinking at least 30 ships loaded with toxic waste, much of it radioactive. In 2005, Fonti revealed the conspiracy in the news magazine L'espresso. His statements led to widespread investigations into the radioactive waste disposal rackets, involving Giorgio Comerio and his disposal company, the Odm (Oceanic Disposal Management).
Legambiente, an Italian NGO for the protection of the environment, provided the public prosecutor’s office with all the data collected by Legambiente since 1994 concerning the disappearance of at least 40 ships in Mediterranean waters. Over two decades, Italian prosecutors have looked into more than 30 suspicious deep-water sinkings. They suspect that Italian and foreign industrialists have acted in league with the 'Ndrangheta, and possibly government agencies, to use the Mediterranean as a dumping ground. Vessels that sank in fair weather had suspicious cargo, sent no mayday or the crew vanished.