A nine week old baby died after he was born hooked on heroin.

Leon Faith Acton spent the first three weeks of his short life in hospital being given doses of morphine four times a day to wean him off the addiction caused by mother Janine Rolfe's habit while she was pregnant.

Yesterday Mrs Rolfe told an inquest at Hastings how she fought to save the infant's life after he stopped breathing at her home in Bexhill Road, St Leonards.

But mystery still surrounds what killed the baby.

When Leon was allowed to leave hospital with his mother, three weeks after his birth, she was told to give her son methadone to try to help him recover from the heroin in his system.

On November 28, 2006, he was given his usual dose of Oramorph, a morphine solution, but his face turned blue.

Mrs Rolfe started to give him mouth to mouth resuscitation while a family friend, Peter Dodds, phoned an ambulance.

When paramedics arrived they found Mrs Rolfe struggling to keep the baby alive as he lay on the sitting room floor.

Leon was rushed by ambulance to the Conquest Hospital in St Leonards but despite doctors' best efforts to resuscitate him he died.

East Sussex coroner Alan Craze recorded an open verdict.