Grizzly bear plays with children at zoo

A remarkable video has emerged from the US of a grizzly bear appearing to play with a group of children at a zoo.

The footage, captured on May 22 in Tulsa, OK , shows the huge animal running towards the kids and interacting with them through the glass of the enclosure.

''I have never seen a bear act like this. It was amazing and such a fantastic experience for the kids,'' the filmer later wrote online.