Firefighters were dispatched to 23rd Street shortly after 4 p.m., and investigated Room 207 in Tompkins Hall wearing hazmat suits, D.C. Fire and EMS spokesman Tim Wilson said. No injuries were reported.
“There was an indication from several accounts that there was smoke, but there was no indication of an explosion,” Wilson said, adding that D.C. Fire will not conduct a follow-up investigation.
University spokeswoman Maralee Csellar said there was “no immediate danger” to students and faculty.
Eva Palmer, Mary Ellen McIntire and Colleen Murphy contributed reporting
