The two-vehicle crash occurred in the northbound lanes coming from Route 78 westbound near mile marker 71.5 in Saucon Township shortly before 1:15 p.m., PSP Trooper Nathan Branosky said on Twitter.
All ramps will be closed “for an extended period of time” following the rollover crash, though the southbound lanes were open to traffic as of 2:30 p.m., Branosky said.
Emergency crews in Nancy Run, Bethlehem Township, Lower Saucon, and Hellertown also responded to the scene.
Minor injuries were reported in the crash, which remains under investigation, authorities said.
Click here to follow Daily Voice Northampton and receive free news updates.