A JURY has ruled there was adequate supervision during the school swimming lesson where young Nathan Matthews drowned.

Nathan, 11, died after getting into trouble in the water during an end-of-term relay race at a leisure centre.

A swimming instructor pulled him from the pool at Thame and lifeguards tried to resuscitate him but failed on July 12, 2004.

Following a nine-day hearing at Oxford Coroners Court a jury of six men and three women ruled that the cause of death was drowning and Nathan died at hospital.

Returning a narrative verdict, the jury foreman said that he was taking part in "adequately supervised swimming activities" and during an organised race "for reasons that cannot be ascertained" he went under the water.

She said: "Based on the evidence, despite all reasonable efforts to revive Nathan Matthews, attempts were unsuccessful.

"After considering the expert medical evidence and on the balance of probabilities we are unable to identify the primary event that led to the death."