Several people were hurt in a second night of anti-migrant unrest in the town of Torre Pacheco in south-east Spain after a pensioner was beaten up, authorities said.

Despite a major police presence, groups armed with batons roamed the streets looking for people with foreign origins, the regional newspaper La Opinión de Murcia reported.

The regional government did not say how many people were injured but stated that at least one person had been arrested over the violence.

The unrest erupted after a 68-year-old man told Spanish media he was beaten up in the street on Wednesday by three young people of north African origin. The attack was filmed and put on social media.