HOUSTON -- Several HFD vehicles are on the scene of an evacuation at the Texas Southern University Science Building due to a chemical leak.

TSU Police say classes in the building are suspended until 1:45 p.m. Tuesday. Students and staff are asked to stay clear of the building.

HFD initially responded to the scene on Ennis Street shortly before 10:30 a.m.

So far there are no reports of injuries, although Air 11 showed an ambulance along with fire trucks at the scene.