A school in Bradford has closed early today after a large number of staff and pupils fell ill.
Appleton Academy in Wyke, a through school for students aged 3-18, has shut both its primary and secondary sites.
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The bug is thought to be a form of norovirus.
The school posted a Tweet updating parents about the situation:
"Due to sickness bug and increasing number of children and staff having to leave school today, Appleton Aacademy has to take decision to close early. Primary closed 12.30pm - secondary 1pm. Please note we are very busy and short-staffed. We sincerely apologise for the inconvenience."