Lanes were shut in both directions of the A1M due to a lorry which hadR jackknifed and crossed the central reservation
The incident happened at Junction 17, near Orton Southgate, in the early hours of this morning.
Highways England tweeted: "Here on the #A1M, we still have 2 lanes (of 3) closed in both directions within J17. We may have to close the carriageway in both directions within the junction shortly to begin recovery and barrier repair operations."
The road had fully reopened by 7.30am