The emergency services are attending a "serious medical incident" involving a child at a Center Parcs resort.
Wiltshire Police said officers had attended the leisure complex at Longleat, Wiltshire, in support of the South Western Ambulance Service on Christmas Eve morning.
A police spokesperson said: "We're in attendance at Longleat Center Parcs near Warminster in support of South Western Ambulance Service following reports of a serious medical incident involving a child shortly after 11am today.