Police have issued a photo of the grandmother who they believe may have the two children who were snatched from a hotel in Stoke-on-Trent by their father.
Denise Smith-Sellers, 67, was seen with Saleem Tahir, 40, in Birmingham at about 8pm, on Friday, around three hours after he abducted two-year-old Na'llah Khan and her little brother, 10-month-old Sulailman Khan.
Anyone who knows the children's whereabouts has been urged to call 0300 123 4455
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Passengers, including a pregnant woman, say they have been stranded since 4pm yesterday.
The boxer said it was the "least he could do" and even donated the £30,000 shorts he wore in his last fight against Devon Alexander.
By Sunday it should become drier with spells of winter sunshine but temperatures will still remain on the cool side.