Man executed in Oklahoma over double killing in 2001

Phillip Hancock shot two men dead in 2001 (Oklahoma Department of Corrections via AP)

A man who claimed he acted in self-defence when he shot and killed two men in 2001 has been executed in the US state of Oklahoma.

Phillip Dean Hancock, 59, received a three-drug lethal injection at the Oklahoma State Penitentiary and was declared dead at 11.29am (5.29pm GMT).