Colombia, South Carolina One of 43 monkeys bred for medical research that escaped from a facility in South Carolina was rescued unharmed, authorities said Saturday.

Many of the others were still found several meters away from the facility, jumping back and forth over the facility’s fences, police said in a statement.

rhesus macaques I took a break for this Wednesday after an employee at the Alpha Genesis facility in Yemassee failed to fully lock the door while feeding and checking on them, authorities said.

On Friday, the monkeys were exploring the outer fence of the Alpha Genesis campus and chirping at the monkeys inside. The primates continued to interact with their friends at the facility on Saturday, which was a positive sign, the police statement said.

In the statement, Alpha Genesis CEO Greg Westergaard stated that efforts to save all animals will continue throughout the weekend and for as long as it takes.

Monkeys are about the size of a cat. They are all females weighing about 7 pounds (3 kilograms).

Alpha Genesis, federal health officials and police have said the monkeys pose no risk to public health. The facility raises monkeys to sell to medical and other researchers.

Alpha Creation It provides primates for research around the world at its campus in Yemassee, about 50 miles (80 kilometers) northeast of Savannah, Georgia, according to its website.