A big anti-austerity demonstration has been taking place in the European quarter of Brussels, where EU offices are located.
Water cannon and pepper spray were used to try to disperse protesting Belgian trade unionists near the headquarters of the European Commission and the European Council.
Thousands of people have been marching through the streets carrying banners and placards criticising the austerity policies which are supported by EU institutions. They include demonstrators from other EU countries.
There is a big police presence and many roads in the area have been cordoned off.