A police chase involving dog units and the forces helicopter brought the M6 to a standstill near Preston.
A stolen vehicle was seen on the M6 northbound between Junction 29 and 31.
One person fled the vehicle and ran across eight lanes of the motorway – northbound and southbound – bringing it to a halt.
Police said one person has been arrested in connection with a stolen vehicle from Lancaster.
Read more: Driver on the M6 has lucky escape after tyre smashes through windscreen
The motorway reopened shortly before 3pm on Friday (31 May) but delays remain northbound.
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