EU solidarity

European Union leaders quickly expressed solidarity with France, and pledged to confront "those that seek to incite and spread hatred".

"I condemn the odious and brutal attack that has just taken place in Nice and I am with France with all my heart," European Commission President Ursula von der Leyen tweeted.

"We will remain united and determined in the face of barbarity and fanaticism."

German Chancellor Angela Merkel was "deeply shaken by the brutal murders" and said "my thoughts are with the relatives of those murdered and injured. Germany stands with France at this difficult time."

In a statement issued later by EU Council chief Charles Michel, the 27 leaders expressed solidarity with France but made no reference to the controversy over cartoons mocking the Prophet Muhammad.

Italian Prime Minister Giuseppe Conte condemned the "cowardly attack" and said: "Our convictions are stronger than fanaticism, hatred and terror. We embrace the families of the victims and our French brothers. We are united!"

British Prime Minister Boris Johnson was "appalled" at the "barbaric attack at the Notre-Dame Basilica", he tweeted in English and French.

"Our thoughts are with the victims and their families, and the UK stands steadfastly with France against terror and intolerance."

Xinhua - Agencies