An atheist group says it will sue if a Hall County high school does not stop a football coaching staff from leading prayers with their players.

Someone sent the American Humanist Association photos of the Chestatee High School team holding hands on the field. Two others showed a Bible quote at the bottom of a workout sheet and on a banner held up by cheerleaders.

David Niose of the American Humanist Association, based in Washington, DC, says the group is objecting to an unconstitutional infusion of religion into the high school football program. AHA says the prayer and the biblical verses found in workout sheets and pre-game banners need to be removed.

"These images were obviously taken in prior years since we haven't even started the 2014 football season yet," said Hall County School spokesman Gordon Higgins.

But Higgins says the district is investigating.

One parent says she supports the coaching staff.

"We've been in the program for years. My son played football. It's never been forced upon him. It is completely open invitation. If you want to pray, pray. If you don't you don't have to," said parent Beth Swenson.