Kenya stand-off: Siege survivor tells how she hid under trolleys

A woman trapped overnight in the Westgate shopping centre in Nairobi has described how she escaped from the building.

Dozens of people were killed in the gun attack at the Westgate centre, which was carried out by suspected al-Shabab militants.

The woman, believed to be a manager at the centre, told how she hid under trolleys before slowly crawling to her office to wait for help.