University of Illinois officials say crews are cleaning a chemical spill at the Urbana-Champaign campus’ Beckman Institute .

School officials said about 1:45 p.m. Monday that the situation is under control and cleanup could take at least two hours. The announcement came after other alerts announcing the hazardous materials release at the institute and asking people to leave the building. School officials say the chemical has been contained in the building and no one should re-enter the Beckman Institute while firefighters deal with the spill.

Research at the Beckman Institute for Advanced Science and Technology centers around molecular science and engineering, integrative imaging and intelligent systems.

No details were given about what chemical spilled or how it spilled.