"In memory of the victims of this terrorist attack, we will turn off the Eiffel Tower illumination at midnight on Friday," wrote the mayor of Paris, Ann Hidalgo, in her Twitter account.
She also expressed condolences to the people of New Zealand, the people of Christchurch and the Muslim community.
Earlier, US President Donald Trump expressed support for the people of New Zealand in connection with the "massacre" in two Christchurch mosques.
March 15, an attack on two mosques in southern New Zealand. Police detained four people, including an Australian citizen. The level of security threat in the country is changed to high.