A seven-year-old boy has been 'seriously injured' in a road traffic collision in Chester.

It is believed a bus was involved in the incident,which happened about 12.44pm on Saturday on Wrexham Road near to the Grosvenor Nuffield Hospital.

A spokesperson for the North West Ambulance Service confirmed that a child had been taken by helicopter to Alder Hey Children's Hospital in Liverpool where he is currently being treated for 'serious head injuries'.