An inmate in the US state of Tennessee has been executed by electric chair after arguing that a lethal injection would involve suffering, BBC reports.
David Earl Miller, who spent 36 years on death row, was the latest of an increasing number of inmates attempting to avoid lethal injection following several botched executions.
Another Tennessee inmate, Edmund Zagorski, was electrocuted last month.
Lethal injection is the state's main method of execution.
However, inmates in the state whose crimes were committed before 1999 are allowed to choose electrocution instead.