Barcelona-Real Madrid: security tight ahead of El Clásico

Mossos d'Esquadra, the Catalonia regional police force, keeping a watchful eye as the Barça team bus makes its way to the hotel.

Mossos d'Esquadra, the Catalonia regional police force, keeping a watchful eye as the Barça team bus makes its way to the hotel.

Mossos d'Esquadra, the Catalonia regional police force, keeping a watchful eye as the Barça team bus makes its way to the hotel.

Crowds start to gather outside the Hotel Princesa Sofía.

Sergio Ramos emerges from Real Madrid's plane at the Josep Tarradellas airport in Barcelona.

The Real Madrid team bus makes its way to the Hotel Princesa Sofía.

Real Madrid players and staff arrive.

Thibaut Courtois and Zinedine Zidane.

Karim Benzema and Dani Carvajal.

Gareth Bale.

Eder Militão.

Barcelona leaving Camp Nou for the hotel, with Leo Messi and Luis Suárez leading the way.

The Barcelona and Real Madrid team buses cross paths near the Hotel Princesa Sofía.

Antoine Griezmann arrives at the hotel.

Leo Messi.

Gerard Piqué and Ernesto Valverde.