Migrants have clashed with Spanish police in Madrid after the death of a Senegalese street vendor who they say had been chased by officers. Protesters set fire to a motorbike and dustbins and threw stones. At least 19 people were lightly injured in the clashes, and ten police officers were hurt. Officials say Mame Mbaye Ndiaye, said to be in his mid-30s, was found unconscious and died of a heart attack. Protesters said he had arrived in Spain by boat twelve years ago. He reportedly worked as a vendor illegally and sent money back to his family. Last year it was reported that the number of asylum-seekers arriving in Spain had tripled in a year, because it was seen as a safer route into Europe.