West Mercia Police have revealed that three branches of Bright Eyes Nurseries, which are in Bromsgrove, Redditch and Droitwich, have been closed while investigations into claims of a sexual assault continue.
They have confirmed that Ofsted are involved.
Five men were arrested this morning. Some of the men arrested are said to be nursery workers.
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A 49-year-man has been arrested on suspicion of causing death by dangerous driving and is currently in custody.