Concourse D at Pittsburgh International has re-opened after reports of smoke in the airport earlier today.
The county bomb squad and fire marshal both responded to the smoke, which was spotted near the concourse gate of the Findlay Township airport, according to WTAE.
First-responders discovered smoke in the men's restroom at about 7 a.m. and flights were briefly moved from the D concourse to the A concourse.
WPXI reports a cigarette caused the smoke.
Airport spokeswoman Joann Jenny could not be reached for comment.