Striking G4S security guards protest over a payment dispute at Parliament S...

Striking G4S security guards protest over a payment dispute at Parliament S...

Striking G4S security guards protest over a payment dispute at Parliament S...

Participant holds a placard with a slogan during the protest. Striking G4S ...

Striking G4S security guards protest over a payment dispute at Parliament S...

Participants hold a banner during the protest. Striking G4S security guards...

Participants hold a banner during the protest. Striking G4S security guards...

Striking G4S security guards protest over a payment dispute at Parliament S...

A participant holds a GMB Union flag during the protest. Striking G4S secur...

A participant takes part in the demonstration while holding a flag. Strikin...

Participants hold placards and GMB Union flags. Striking G4S security guard...

Participant holds a placard with a slogan. Striking G4S security guards pro...