SPRINGFIELD, Ill. (AP) – State officials are ordering a study of the Illinois Capitol dome after workers found small pieces of concrete fell from the inner portion of the outer dome.

The (Springfield) State Journal-Register reports state officials say there’s no emergency but there is evidence of leaking. The Illinois Secretary of State’s office is in charge of the Capitol building. Office project manager Harl Ray says concrete pieces about the size of marbles were seen between the Capitol’s inner and outer domes. He says the leakage is likely where the outer metal dome skin is bolted to concrete panels.

Ray says the dome was last patched for leaks in 2000 or 2001.

The state is in the process of selecting a contractor to do a comprehensive inspection and recommend what needs to be done.