BOSTON (AP) -- An adult zebra and endangered baby zebra have escaped from an exhibit at a Boston zoo that was then evacuated.

No injuries were reported Saturday after the zebras got loose from their enclosure at the Franklin Park Zoo at about 10:45 a.m. The baby soon returned to the enclosure, while the adult female was confined in one area of the zoo early Saturday afternoon as workers tried to get her back to the exhibit.

WBZ radio reports (http://cbsloc.al/n9r0zI ) the zoo was evacuated as a precaution, but zoo officials say the public was never in danger.

The baby is a Grevy's zebra, a species primarily found in Kenya that numbers only 2,500 worldwide. It was the baby's first day in the exhibit.

Zoo workers are investigating how the animals escaped.