New York (CNN) -- A 6-month-old girl was killed and her mother seriously injured Saturday when the pair were struck by a falling tree branch in New York City's Central Park Zoo.
The girl's father was taking their picture near the sea lion exhibit when a branch above them suddenly snapped.
The mother and baby were taken to the nearby Weill Cornell Medical Center, where the girl was pronounced dead upon arrival. As of Saturday evening, her 33-year-old mother is listed in critical, but stable condition and expected to survive.
Witnesses told CNN affiliate WABC that the baby did not cry out when she fell to the ground, leading them to believe she was killed instantly.
The Wildlife Conservation Society, which operates the Central Park Zoo, issued a statement after the incident expressing its "sincerest condolences" to the family, who was visiting the zoo from New Jersey.
A falling branch in the park also killed a man in February when heavy snow accumulations caused it to snap.