Child killed in African wild dog exhibit at PA. zoo

A 2-year-old boy has died after he fell into an enclosure containing African painted dogs at a Pittsburgh zoo.

The child fell off of the railing his mother put him on and into the enclosure where the dogs mauled him.

"Zoo keepers called off most of the 11 dogs," the BBC said. "One refused to move away from the boy and was shot dead."

It is not clear if the child died from the fall or from the mauling said the Associated Press

The zoo has been closed and is under investigation by the police.