A number of teenagers are reported to be suffering from sickness and diarrhoea after swimming in a make-shift pool filled with river water in Hebden Bridge.
The local high school, Calder High in Mytholmroyd, has written to parents saying a number of students had become ill after taking part in what was "not an officially organised activity".
It's understood that river water was somehow pumped into the hollowed out skate park in Calder Holmes - much to the delight of youngsters who took a dip to cool down. Environmental Health officers are advising anyone with concerns to contact their GP.
More top news
The Airlie Birds are off to Wembley after tries from Stevie Michaels and Fetuli Talanoa saw them beat the Warriors 16-12.
Detectives are appealing for information to trace a man they want to speak to in connection with the incident.
Thomas McMeekin was showing off in his new car before the crash, which left two young boys dead and two others with life-changing injuries.