Protesters gather outside Pret headquarters urging the fast food chain to d...

Protesters gather outside Pret headquarters urging the fast food chain to d...

Protesters gather with a giant 'wrapped chicken' outside Pret headquarters ...

Protesters gather outside Pret headquarters urging the fast food chain to d...

Protesters gather outside Pret headquarters urging the fast food chain to d...

An activist stands next to a giant 'wrapped chicken' outside Pret headquart...

Protesters gather outside Pret headquarters with a long pledge to boycott P...

An activist stands next to a giant 'wrapped chicken' outside Pret headquart...

Protesters pass through Parliament Square during the march to Pret headquar...

Protesters pass through Parliament Square during the march to Pret headquar...

Protesters pass through Parliament Square during the march to Pret headquar...

Protesters pass through Parliament Square during the march to Pret headquar...

Protesters pass through Parliament Square during the march to Pret headquar...

Protesters pass through Parliament Square with a giant 'wrapped chicken' du...

Protesters pass through Parliament Square with a giant 'wrapped chicken' du...

Protesters pass through Trafalgar Square with a giant 'wrapped chicken' dur...

Protesters pass through Trafalgar Square with a giant 'wrapped chicken' dur...

Protesters pass through Trafalgar Square with a giant 'wrapped chicken' dur...

Protesters pass through Trafalgar Square with a long pledge to boycott Pret...

Protesters pass through Trafalgar Square with a long pledge to boycott Pret...

Protesters pass through Trafalgar Square with a long pledge to boycott Pret...

Protesters pass through Trafalgar Square with a giant 'wrapped chicken' dur...