A US man convicted of murder and rape, who was executed by lethal injection, took more than 15 minutes to die.
The man was administered a combination of drugs that have never been tried before in the United States.
According to the Sydney Morning Herald, the process is an attempt by states seeking a way to execute prisoners in a constitutionally approved manner that avoids cruel and unusual punishment.
Dennis McGuire, 53, made 'several loud snorting or snoring sounds' in the 15 minutes after he was injected the drug at the Southern Ohio Correctional Facility in Lucasville.
McGuire's lawyer, federal public defender Allen Bohnert, called the death 'a failed, agonising experiment by the state of Ohio,' the report said.
McGuire received a combination of the sedative midazolam and pain killer hydromorphone.