MINNEAPOLIS (WCCO) — A building on the University of Minnesota campus that was closed due to a chemical spill has reopened.

Just before 8 a.m. Friday, the University of Minnesota said a chemical spill at Smith Hall prompted the closure of the building.

In the alert posted to Twitter Friday morning, the university said the building is closed until further notice.

Roughly 45 minutes later, the university tweeted that the building had reopened.

The Minneapolis Fire Department is on the scene investigating.