Part of retaining wall at the bottom of Tiger Hill in Broken Arrow is spilling out into the Flight Safety International parking lot. The area is near 71st and Lynn Lane.
Tiger Hill is the location of city water tanks and some communication towers.
About a 40-foot section of the retaining wall has broken loose with the bottom several blocks and fill dirt spilling into the parking lot.
Another photo shows the ground is shifting north of that area as well. The business has the parking lot roped off and guarded for safety Sunday afternoon.
A spokesperson with the City told News On 6 they will release more information on the wall Monday.