Today the government will announce plans to re-open the rail franchising process, six months after the collapse of the West Coast Mainline deal.
It is thought that the priority will be to agree a new ownership deal for the East Coast mainline.
The rail route will be put back into private ownership after a long period under state control.
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The 21-year-old, who was arrested on Sunday, also allegedly injured two other people in the attack in the German city of Reutlingen.
She was going to the aid of a family member who got out of the car in the middle of the park and was dragged away by a different tiger.
The man, who was in his 30s, has not been identified, while several other people are believed to have suffered serious injuries.