There are heavy delays in on Interstate 79 southbound near Cranberry after a tractor trailer accident.
The accident occurred near the Evans City exit and is causing significant delays.
There is also heavy traffic on Route 19 as people try to get to Zelienople and Harmony.
Harmony Fire District said on Facebook that there was an entrapment after the tri-axle truck crashed on its side, but there were no serious injured.
Crews are clearing the area.