A two-year-old boy has died after a medical episode at a nursery, police said.
Officers were called to the Early Learners Day Nursery on Hawthorne Road, in Bootle, Merseyside at 12.35pm on Tuesday, Merseyside Police said.
The child was taken to hospital by paramedics where he was pronounced dead.
The force said the boy's family is being supported and an investigation is under way.
The nursery, which last year was rated as "Good" by Ofsted inspectors, has been approached for comment.
A message, reportedly from the nursery and shared on social media, said: "Dear parents and carers, as you are aware, this afternoon a medical emergency occurred at the nursery. It is with devastating sadness that we have to inform you of a child's passing.
"To enable everyone to process today's tragic events, we have made the decision to close the nursery for the remainder of the week, and also to allow us to continue working with relevant agencies.
"We trust that you understand our decision at this difficult time and we will update you all with further information in the coming days. Our thoughts and prayers are with the family."
Merseyside Police said in a statement: "We can confirm that an investigation is under way following reports that a two-year-old boy suffered a fatal medical episode at a children's nursery in Bootle.
"The incident was reported at around 12.35pm yesterday, Tuesday 14 January, at Early Learners Day Nursery, on Hawthorne Road, and the child was taken to hospital by paramedics.
"He was sadly pronounced deceased at hospital and his family is being supported.
"An investigation has been commenced to establish the full circumstances and cause of death, which is currently being treated as unexplained."
