Four children were taken to hospital as a precaution after unidentified tablets were found at a school.
West Yorkshire Police said a woman in her 20s has been arrested in connection with an incident which had occurred on Friday at Holywel Green Primary School, in which some children had come into contact with tablets.
The Force did not say what kind of tablets had been recovered
Calderdale Council’s Director for Adults and Children’s Services Stuart Smith said: “We are aware that some children from a school in Calderdale have attended hospital today and their parents have been informed.”
Police and social workers are investigating the circumstances.

Boy, 15, Charged with Murder After Fatal Wembley Stabbing
Three Bradford Shops Closed Over Illegal Goods and Anti-Social Behaviour
Man Jailed After Deliberately Driving Car at People Outside Bradford Casino
Man Charged with Murder and Eight Attempted Murders Following Hounslow House Fire
North Yorkshire Police Warn of Rise in Fake Police Officer Fraud
Bradford Somali History Project Wins National Cultural Award
Plans to Turn Former Halifax Pub into Builders’ Merchants Rejected
Plans Submitted for 25 New Council Homes in Farsley
Consent Conversations Campaign Comes to Leeds Festival for First Time
The Golden Era
Legal Show
Remix Saturdays
Alim OnAir