Oklahoma and Florida are moving quickly to resume lethal injections after the U.S. Supreme Court upheld the use of a sedative that has been used in several problematic executions.

Attorneys general in both states asked courts Monday to allow executions to proceed for three inmates in Oklahoma and one in Florida.

The requests came just hours after the high court voted 5-4 that the sedative midazolam can be used in executions without violating the Eighth Amendment's ban on cruel and unusual punishment.

Prison officials in both states have said previously they were ready to proceed with executions if the use of midazolam were upheld.

Unlike other execution drugs that have become difficult for states to obtain, there are numerous manufacturers of midazolam.