Mystery remains after children fell ill after swimming in sea off Essex coast - Clacton and Frinton Gazette
- Mystery remains after children fell ill after swimming in sea off Essex coast Clacton and Frinton Gazette
- Beachgoers left 'gasping for breath' after incident in Essex The Guardian
- Frinton-on-Sea: Police called as beachgoers left 'struggling to breathe' BBC News
- Essex beachgoers told to stay out of water again after dozens left gasping for breath Mirror Online
- Beachgoers at Essex seafront left 'struggling to breathe' ITV News
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