A critical override vote on a package of budget bills was delayed Thursday as authorities investigate a report of hazardous material in the Illinois Capitol.
Springfield Fire Chief Barry Helmerichs told Gatehouse Media on Thursday that the building is on lockdown after a woman allegedly threw a powdery substance in the governor's office. The building isn't being evacuated, but those who aren't inside the building are being kept outside.
Emergency vehicles have arrived at the scene.
An announcement was made inside the House chambers where lawmakers and reporters are gathered to instruct people not to enter or exit the building.
Dave Druker, a spokesman for the Secretary of State's office, which oversees Capitol security, said one person was taken into custody Thursday. He did not have further details.