The state’s governor also announced that former US attorney Ed Stanton would lead a review of what happened in Pike’s death chamber. Key points and original sources are listed below.

• The state’s governor also announced that former US attorney Ed Stanton would lead a review of what happened in Pike’s death chamber.S1S2

• Department of Correction commissioner Frank Strada said that although he believes his agency followed proper execution protocol, "stepping aside is in the best interest of Tennesseans."S3

• Lawyers representing Pike said on Saturday that she is in hospital, unconscious and on a ventilator.S4

• The top official in charge of prisons in the US state of Tennessee is to step down, after a female death row inmate survived execution by lethal injection.S5

• Tennessee prisons chief Frank Strada says he will resign after Christa Pike survived two doses of pentobarbital during a failed execution attemptS6