SIOUX FALLS, S.D. (AP) — Two former employees of a Sioux Falls day care are accused of physically abusing children at the center.

Police arrested the two on Friday on potential charges of abuse or cruelty to a minor. The two worked at Little Blessings Learning Center.

The Argus Leader reports a child had told his mother in late February that a worker had banged his head on a mat while he was sleeping.

Sioux Falls police spokesman Sam Clemens says surveillance video showed the two workers slamming children 3 to 4 years old to the ground, yanking them by their arms and stomping on them.

Volunteers of America, Dakotas says it immediately placed the two workers on leave, investigated and reported the issue to authorities. The workers are no longer employed at the center.