As of Monday afternoon, 30 of the 43 monkeys that made it outside the Alpha Genesis facility in Yemassee are back in the company’s custody unharmed, police said in a statement.

Police say residents of Yemassee, South Carolina, should keep their doors and windows locked until the primates are found.

One monkey has been captured after 43 monkeys escaped from the Alpha Genesis research facility in South Carolina, the Yemassee Police Department said.