My son has travelled to Warrington this morning to pick up his son for a visit. They joined the M6 southbound, and hit serious traffic.
I looked on the traffic news and it said the M6 was fully closed in both directions due to a "police led incident". If it was a bad accident, they'd usually say that, so I don't think it will be for that.
They travelled 30 miles in two hours, but finally got moving and diverted via goodness knows where, but at least they're safe, which may not be the case for another family.