A four-year-old boy is in critical condition after an incident at a swimming pool.
Police and ambulance attended the incident at Sockburn - about 10km from Christchurch - about 2.30pm.
A spokesman for Christchurch Hospital said the boy is in critical condition but details of his injuries could not released without permission from the boy's parents.
A St John Ambulance spokesman earlier described the boy's injuries as "serious" but did not have specific details either.
"We sent a rapid response and an ambulance to the scene which was an address on Main South Rd, Sockburn," he said.