Naples sinks under mountain of trash
Seven firefighters have been wounded after angry protesters threw stones and firecrackers at fire-engines.
Naples's refuse collectors stopped collecting rubbish in the city and the surrounding region in December after landfill sites were declared full.
The port city has been buried under piles of garbage since then.
The situation is so serious that Italian leader Romano Prodi is considering using the police and army to tackle the crisis.
He's promising to reopen several landfill sites, including some closed because of health concerns.
The situation has been complicated by the involvement of the local mafia, who control the regions waste disposal businesses.