The monkey, a rhesus macaque (initial reports identified it as a baboon), broke free Monday afternoon upon arriving from Brown University via an American Airlines flight from Boston’s Logan Airport, according to local ABC affiliate KSAT. The animal was headed to the Born Free USA Primate Sanctuary in La Salle County, about 100 miles south of San Antonio.
The monkey managed to escape during its transportation to cargo. San Antonio Police said the monkey was corned in a room inside the airport around 3:45 p.m., according to CBS affiliate KENS. Airport officials said the animal never made it to a terminal or anywhere near passengers.
Officials from the San Antonio Zoo were called to assist with the monkey’s captured, facilitated by the use of a tranquilizer gun.
“We are working closely with the San Antonio Aviation Department and officials from the San Antonio Zoo,” American Airlines said in a statement, according to KSAT. “Officials from the zoo are now onsite to ensure his safety and wellbeing as he continues his journey to his new home at the primate sanctuary.”
American Airlines did not immediately respond to a request for comment from TIME.