The City of Waco is suing American Archaeological Group for a mistake it says has cost the city more than a million dollars.

The city says the costs are due to construction fees after delays to the renovation at the Texas Ranger Museum. The project ran into trouble when construction uncovered human bones during May of last year.

The graves were part of an old cemetery the city says it thought had been excavated more than 40 years ago.

The city points a finger at AAG, that it hired to survey the site before building began.