A row over refuse has sparked clashes in the Italian city of Naples.
There were angry scenes as demonstrators blocked the entrance to a waste dump authorities want to re-open.
With other facilities full, officials are trying to resolve a crisis blamed on mismanagement and corruption. But locals fear the landfiill will harm their health and activists showed their anger by pelting missiles at police.
Piles of rubbish on the streets of Naples are not an unusual sight. For years, successive trash tsars appointed by the government have failed to solve the problem.
It is made worse as organised crime in the area has made illegal waste disposal an industry.
Italian President Giorgio Napolitano has stressed his alarm at the situation.
With delays dogging the opening of a massive incinerator, residents have resorted to setting rubbish on fire themselves, raising fears over toxic smoke.