![Festival-goers stampede after 'noxious substance' is sprayed over crowd leaving them vomiting and in tears - Mirror Online Festival-goers stampede after 'noxious substance' is sprayed over crowd leaving them vomiting and in tears - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article11088632.ece/ALTERNATES/s615b/South-West-Four-Festival-Day-1-Clapham-Common-London-UK-26-Aug-2017.jpg)
Festival-goers stampede after 'noxious substance' is sprayed over crowd leaving them vomiting and in tears - Mirror Online
![SW4 2019 festival line up: The Prodigy, Tinie Tempah and Martin Garrix to headline South West Four | London Evening Standard | Evening Standard SW4 2019 festival line up: The Prodigy, Tinie Tempah and Martin Garrix to headline South West Four | London Evening Standard | Evening Standard](https://static.standard.co.uk/s3fs-public/thumbnails/image/2018/08/15/11/south-west-four-festival-g.jpg?width=640)
SW4 2019 festival line up: The Prodigy, Tinie Tempah and Martin Garrix to headline South West Four | London Evening Standard | Evening Standard
![Festival-goers stampede after 'noxious substance' is sprayed over crowd leaving them vomiting and in tears - Mirror Online Festival-goers stampede after 'noxious substance' is sprayed over crowd leaving them vomiting and in tears - Mirror Online](https://i2-prod.mirror.co.uk/incoming/article11088633.ece/ALTERNATES/s1200/South-West-Four-Festival-Day-1-Clapham-Common-London-UK-26-Aug-20171.jpg)