A serene scene is somehow interrupted by a pitch invader at the empty Nou Camp hosting Barcelona vs Las Palmas, a match that was played behind closed doors on Sunday due to recent political unrest in Catalonia.

With no fans to police, the stewards, who up until the moment of intrusion simply faced stretches of empty seats, were perhaps caught off guard.

Somehow there's a pitch invader, despite there being no fans. Waving a white piece of paper

— Rik Sharma (@riksharma_) October 1, 2017

With a big grin on his face, one man managed to make his way onto the pitch but was eventually grabbed by several stewards after slipping in the penalty area nearest the tunnel, before being escorted away: