A little girl, believed to be about eight months old, is in a serious condition after collapsing at a swimming pool at a Hemsby holiday park.

The incident happened at Hemsby Holiday Park, a Richardson's resort, shortly after 11am today.

A spokesman for the ambulance service said the youngster was taken to James Paget University Hospital after fainting in a rubber ring she was in at the pool.

It is understood that a lifeguard came to the rescue and gave the toddler CPR until the ambulance crew arrived.