Brazilian police have arrested 19 people suspected of vandalism during anti-World Cup protests in Rio de Janeiro.

The arrests are thought to have been made in order to prevent more protests during tomorrow's final between Argentina and Germany in Rio's Maracana stadium.

According to PA, police said officers had seized gas masks, fireworks and firearms.

More than 25,000 soldiers and police will be deployed in the city tomorrow in what will be the biggest security detail in the country's history.