- An urgent search is underway for an 11-year-old boy who went missing after entering the River Don in Mexborough, South Yorkshire.
- Police were called at 7.59pm on Saturday after witnesses saw the boy enter the water but not re-emerge.
- A multi-agency operation involving South Yorkshire Police, fire and rescue, ambulance, air service, and an underwater search team is actively looking for him.
- The boy's family has been informed and is receiving support from specially trained officers.
- Authorities have urged the public to avoid the search area and refrain from spectating or filming, noting the incident occurs amidst a heatwave that has seen multiple water-related deaths across the UK.
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