The Prime Minister said "wider questions" had been raised about the welfare system.
ITV News Political Correspondent Libby Wiener reports:
More top news
Local police said authorities are searching for 29-year-old Travis Reinking after a shooting at a Waffle House restaurant in Nashville.
Faisal Mekdad, the deputy foreign minister, told ITV News Britain was 'absolutely' involved in faking an attack in Douma.
Kenyans Eliud Kipchoge and Vivian Cheruiyot won the men's and women's races respectively, in a scorching hot London Marathon.