An overturned tractor trailer caused traffic headaches for commuters on Highway 401 last week.

The Ontario Provincial Police reported the single-vehicle rollover crash in the highway’s eastbound lanes at Queens Line shortly after 2:30 p.m. on Friday.

Eastbound Highway 401 was closed in the area for several hours, snarling traffic while crews cleared the scene.

The highway was fully reopened to traffic just before 7 a.m. on Saturday.

It is unknown at this time if anyone was injured in the crash.

There has been no word yet on whether any charges will be laid.