The Smithsonian National Zoo just experienced an incredible loss.

25 American flamingos were killed by a wild fox that entered their enclosure.

The wild fox also reportedly killed one Northern pintail duck.

Three flamingos were also injured and are being treated at the zoo’s veterinary clinic.

The zoo escaped the enclosure before it was caught, but traps have been set out.

The zoo has installed traps, as well as digital cameras to capture nocturnal animal activity.

This is the first breach of the enclosure since it was first developed in the 1970s.

The fox reportedly entered through a “new softball-sized hole in the heavy-duty metal mesh” fence.

The Bird House and “surrounding plateau” are currently closed to the public as it undergoes a “major renovation.”