Corrections officials have postponed Georgia's first execution of a woman in 70 years, citing problems with the lone drug that would be used for the lethal injection.

The only drug used in Georgia executions is pentobarbital.

Georgia Department of Corrections spokeswoman Gwendolyn Hogan said late Monday that the drug appeared cloudy so officials called a pharmacist and then out of an "abundance of caution" decided to postpone the execution. They did not give a new date.