NEW : 43 protesters and 33 police are injured in clashes , Madrid ambulance service says . The Spanish government has called a national strike to protest the violence against demonstrators on Friday night. Miners are protesting cuts to government subsidies for the mining sector . Unions say this endangers the jobs of 8,000 miners and 22,000 auxiliary jobs that serve mining regions where 200,000 people live and depend on mines . Prime Minister Mariano Rajoy announces a sales tax increase and more spending cuts .
NEW : 43 protesters and 33 police are injured in clashes , Madrid ambulance service says . The Spanish government has called a national strike to protest the violence against demonstrators on Friday night. Miners are protesting cuts to government subsidies for the mining sector . Prime Minister Mariano Rajoy announces a sales tax increase and more spending cuts .