The father of Harry Procko is calling for urgent changes after his son's death

The father of a four-year-old boy with autism has launched a campaign to highlight the need for hospital staff to have a better understanding of the requirements for children with special needs.

Harry Procko, who was born with a hole in his heart, was referred to Nottingham Children's Hospital in June after getting a severe stomach bug.

His family's lawyers say he was sent home the following day after doctors decided he didn't need blood tests. He died two days later on June 23.

A blood test taken immediately before his death found that his blood pH level was so skewed he had no chance of survival.

Harry's parents, Richard Clements and Maria Procko, from Nottingham, are demanding answers into their son's death.

Their lawyers, Irwin Mitchell, said a report ordered by hospital bosses was critical of Harry's treatment and stated there was a 'missed opportunity to perform a blood test on Friday June 20'.

The family claim that Harry Procko was misdiagnosed and consequently died only days after being discharged.Harry's parents, Richard Clements and Maria Procko, from Nottingham, are demanding answers into their son's death and are calling for urgent changes in hospital procedures.

A second investigation into the circumstances of Harry's death is also underway and an inquest is expected to start in July.