Police arrested 17 people at demonstrations of right-wing extremist groups on Thursday’s national holiday. Ten people out of a group of about 50 were detained after a demonstration of the Workers’ Party for Social Justice )the successor of the banned neo-Nazi Workers’ Party) when they attempted to cross the river where an opposing demonstration was taking place and were deterred by police. A group of young people then began throwing fireworks at officers. Seven other people were arrested during the demonstration itself for possession of fireworks. No problems were reported at the day’s main protests, a demonstration of some 2,000 people against the current centre-right government and its reform plans. November 17 marked 22 years since the beginning of the Velvet Revolution in Czechoslovakia, which brought down the country’s Communist regime.