France train shooting: Gun 'not operating properly'

The stepmother of one of the US passengers to overpower a heavily-armed man who opened fire on a train in northern France says they were able to because the gunman had difficulty with the ammunition.

Karen Skarlatos says her son Alex and Spencer Stone "seized that opportunity to rush" the 26-year-old Moroccan, who had became distracted.

She added: "He's strong and he's brave and so it didn't surprise me at all that he and Spencer came forth to take care of business that needed to be done."