Scaffolding topped with boards went up Monday around the main entrance to the State Capitol in an effort to protect visitors from potential falling mortar.

The move was prompted by the discovery of broken mortar pieces from the limestone panel joints over the Capitol’s front door, said Meghan Parrish, communications director for the state Division of Administration.

“In an abundance of caution, just to be safe, we are installing a protective area while we determine the best approach to repairing it long-term,” said Parrish.

“We are investigating the best solution to address this matter,” she said.

Parrish said the problem is unrelated to the $4.5 million security upgrade work that is on-going around the Capitol. There’s a proliferation of fences keeping visitors out of construction zones all around the Capitol.