The people of France have vented their anger at a government they accuse of failing to protect them against terrorism.
The country's prime minister was booed as he attended a memorial service for the victims of the Nice attack, with shouts of "murderer" and calls for him to resign.
Eighty-four people have died following Thursday's attack, the third major atrocity in France in just 18 months.
ITV News correspondent Emma Murphy reports:
French Prime Minister Manuel Valls faced boos and calls to resign as he laid a wreath for the 84 people killed in the lorry attack in Nice.
Hours later Mohamed Lahouaiej Bouhlel drove a 19-tonne lorry down the promenade killing 84 people and injuring 200 more.
France's prime minister stated on Sunday he believed the man behind the Nice lorry attack was radicalised "very quickly"