© Reuters/Francis LenoirDemonstrators clash with riot police officers during a European trade union protest against austerity measures, in central Brussels April 4, 2014.
Brussels police used tear gas and water cannon in clashes with protesters, as thousands gathered at a trade union rally against austerity. Violence in the area where many government offices are situated caused a lockdown at the US embassy.
Around 25,000 people, according to Brussels police spokeswoman, Ilse Van de Keere, marched against austerity and unemployment. They were faced with a heavy-handed police response.
Initially, the trade unions expected to see 40,000 demonstrators on the streets of Brussels.
Some demonstrators threw oranges and cobblestones at police. Violent clashes also took place near the US embassy.