France's interior minister said on Thursday more militant attacks on its soil were likely and the country was engaged in a war against Islamist ideology following the second deadly knife attack in its cities in two weeks.

Minister Gerald Damarnin was speaking a day after an assailant shouting "Allahu Akbar" (God is Greatest) beheaded a woman and killed two other people in a church in Nice. The man was shot by police and is now in critical condition in a hospital...