The Oliver King Foundation launched in Liverpool

A new sports hall at the school has been named in Oliver's memory

A foundation set up in memory of a Liverpool schoolboy who died after collapsing during a school swimming lesson has been launched.

Oliver King, 12, a pupil at King David High School, died in March from Sudden Arrhythmic Death Syndrome.

The Oliver King Foundation was set up by his parents, who are trying to raise awareness of the condition, which often goes undetected in children.

They also want to get defibrillators fitted in schools and sports centres.

Oliver's father, Mark, said: "A lot of hard work's gone into the foundation, and I know it will be a success."

He said it was important for children and young people to be screened to detect the condition.

"For every 300 children that we screen, we will find one child," he said.

Mr King said King David High School had worked "tirelessly" to support the foundation and had named a new sports hall in Oliver's memory.

Head teacher Brigid Smith said the school was holding a day of events culminating in a balloon launch.

She said: "The pupils across the campus, parents and families and friends have paid to send messages on the balloons for people that they remember, and that have passed away."