The state attorney general, Mike Hunter, and corrections department director, Joe Allbaugh, jointly announced the plan, reported the Guardian.
Oklahoma and other states haven’t been able to get the drugs required for lethal injections amid opposition from drugmakers to having their products used in executions.
Hunter and Allbaugh made an announcement that the state will move forward with executions by the method of “inert gas inhalation.”
Hunter said, “We can no longer sit on the sidelines and wait for the drugs. Using nitrogen will be effective, simple to administer, easy to obtain and requires no complex medical procedures.”
Authorities will work together over the coming months to develop new protocols, the two men added.
According to the reports, Oklahoma has had one of the busiest death chambers in the US, but hasn’t carried out an execution since 2015 after a series of mishaps.
However, it is unclear as to when the executions will resume.