One escaped monkey was captured in South Carolina, and several others were on the property

The ongoing operation to capture 43 monkeys that escaped from a South Carolina lab resulted in at least one of the furry runaways being nabbed Saturday, officials said.

Yemasee city officials said they recovered overnight one of the rhesus macaques that escaped from the Alpha Genesis Primate Research Center on Wednesday.

“She is doing well and eating a peanut butter and jelly sandwich,” Alpha Genesis CEO Greg Westergaard said in a statement.

Yemasee officials said “a significant number” of the escaped primates were at a facility near where the rescued animal was found and were “jumping back and forth over the facility's fence.”

“Alpha Genesis management and staff are on site, actively feeding and monitoring the animals, and will continue these efforts throughout the weekend,” city officials said in a statement.

“The primates continue to interact with their counterparts within the facility, which is a positive sign,” they added.

Westergaard said the monkeys were taking a nap Saturday afternoon.

“They’re getting a little bit more grounded now. It’s a slow process,” he said.

The creatures escaped when a new Alpha Genesis Center employee left the door to their enclosure open, Yemassee City Manager Matthew Garnes said during a meeting Thursday with city officials.

According to police, the primates are all very young females, each weighing 6 to 7 pounds, and have never been tested. There is no threat to public health, police said.

ABC News' Bill Hutchinson contributed to this report.