Arkansas inmate Jack Jones was executed by lethal injection at 6:25 p.m. local time Monday, according to ABC News, the first of what is expected to be the only double execution in the U.S. since 2000.

Jones was pronounced dead at the state's Cummins Unit in southeast Arkansas, ABC News added.

The action came after the Supreme Court refused Monday to block it.

The Associated Press said Justice Sonia Sotomayor dissented from the majority in Monday night’s decision regarding Jones.

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Jones previously argued that his poor health could lead to excessive pain during a lethal injection.

The AP said Jones was sentenced to death for the rape and killing of a woman in northern Arkansas.

Jones reportedly had a leg amputated in prison due to diabetes-related complications.

Jones was one of two inmates scheduled for death in Arkansas late Monday.

Fox News said Marcel Williams is also scheduled to die at 8:15 p.m. local time.

Williams’s attorneys wrote a court filing to justices asking them to block his execution due to his “morbid obesity.”

“[It] makes it likely that either the IV line cannot be placed or that it will be placed in error, thus causing substantial damage (like a collapsed lung),” they said.

Williams was reportedly sent to death row in 1994 for the rape and killing of a 22-year-old in central Arkansas.

The inmate also admitted responsibility for two other rapes to the state parole board last month.

The AP said the last state to execute two prisoners on the same day was Texas, which performed that act in August 2000.

Arkansas had eight executions scheduled for an 11-day period before the end of month, when its supply of a lethal injection drug expires.

One inmate was put to death last week, ABC News said, but the first three executions were canceled after court rulings.