A drug used to execute death row inmates and put dogs to sleep has been stolen from a vet's clinic.
About 15ml of the lethal barbiturate in a glass bottle was taken in a break-in at the Veterinary Clinic in Celbridge, Co Kildare, last week.
The drug is a powerful sedative which slows the activity of the brain and nervous system and has been used in 13 US states for executions.
"This is a toxic substance and is not intended for human consumption," a spokesman said.
Gardai said the bottle was marked with an orange and white label with the word Release written in block capitals across it.
Detectives investigating the break-in and officials at the Irish Medicines Board (IMB) said they were very anxious to recover the potential poison and appealed for anyone with information or anyone who knows where it is to contact Leixlip Garda station.
The drug is used by vets to euthanise animals, from horses and cattle to cats and dogs.
The burglary took place between 8.30pm last Tuesday and 5pm the following day.