Students were evacuated from White Hall Classroom Building Tuesday afternoon, after the fire department responded to a call.

“They suspect it could have been a discarded cigarette that started the fire,” UK spokeswoman Kathy Johnson said. She said a pile of leaves caught fire behind the building.

The fire department called UK Police Department at 1:53 p.m., she said, and by 2:35 it was all clear.

Students were evacuated for about 15 minutes and classes resumed.

Classes are not canceled.