ARTICLE AD BOX
The US Supreme Court will not block Alabama from executing Kenneth Eugene Smith with nitrogen gas, a method never used before for capital punishment.
Smith had asked the court to intervene, saying that pumping toxic nitrogen into his body through a mask was cruel and unusual torture.
The execution is scheduled for Thursday.
Alabama already tried to execute Smith by lethal injection two years ago for his 1989 murder conviction.
This breaking news story is being updated and more details will be published shortly. Please refresh the page for the fullest version.
You can receive Breaking News on a smartphone or tablet via the BBC News App. You can also follow @BBCBreaking on Twitter to get the latest alerts.