At least 43 primates are reported to be on the loose in South Carolina as authorities "strongly advise" residents to keep their doors and windows closed after the animals escaped from a research lab.
"At this point, no arrests have been made," the Yemassee Police Department said in a statement posted on its Facebook page.
Traps are being set around the Alpha Genesis Primate Research Center in Yemassee, where Rhesus Macaque monkeys escaped en masse from their enclosures around 1 p.m. Wednesday, according to the Beaufort County Sheriff's Office.
Yemassee City Administrator Matthew Garnes said during a conference call Thursday with city officials that the monkeys escaped when a new employee at the Alpha Genesis Center left their door open.
Police officers were searching for the fugitives using thermal imaging cameras, according to the sheriff's office.
The primates, according to police, are all very young females weighing between 2 and 3 kg each.
"The animals were never used for testing due to their young age and size," the Yemassee Police Department said in a statement Thursday. "A spokesperson from Alpha Genesis can confirm that these animals are too young to carry disease," he added.
Police warned residents that monkeys can hide and any noise or movement could prevent their safe capture.
"Residents are strongly advised to keep doors and windows secure to prevent these animals from entering the home," the sheriff's office said. "If you see any of the escaped animals, please contact 911 immediately and refrain from approaching them."