Terrorist attacks on two mosques in New Zealand — which killed at least 49 people on Friday — have sparked horror, revulsion and dismay around the world.
One of the gunmen — believed to be an Australian extremist — apparently livestreamed the deadly assault.
"It is clear that this can now only be described as a terrorist attack," said Prime Minister Jacinda Ardern, describing it as "one of New Zealand's darkest days".
Below are some of the main international reactions so far.
Muslims face 'mass killing'
"With this attack, hostility towards Islam that the world has been has been idly watching and even encouraging for some time, has gone beyond the boundaries of individual harassment to reach the level of mass killing," said Turkish President Recep Tayyip Erdogan.
"If measures are not taken right away, news of other disasters will follow this one ... I am calling on the world, in particular the West, to take quick measures," he said.
Queen Elizabeth II, New Zealand's head of state, said she was “deeply saddened” by the attacks on the two mosques.
“I have been deeply saddened by the appalling events in Christchurch ... At this tragic time, my thoughts and prayers are with all New Zealanders,” the Queen said in a message.
“Prince Philip and I send our condolences to the families and friends of those who have lost their lives,” she said, paying tribute to emergency workers and volunteers providing support to the injured.
Queen Elizabeth is the sovereign of New Zealand and 15 other separate realms including Britain, Australia and Canada.
Prince Charles, the heir to the throne of New Zealand, said he was “utterly horrified” by the “barbaric attacks”.
“It is beyond all belief that so many should have been killed and injured at their place of worship,” he said.
“This appalling atrocity is an assault on all of us who cherish religious freedom, tolerance, compassion and community. The people of New Zealand will never allow hate and division to triumph over these things they hold dear.”
Charles's sons and their wives also sent their sympathies in a message that ended with “Kia kaha”, meaning “be strong” in Maori.
“We have all been fortunate to spend time in Christchurch and have felt the warm, open-hearted and generous spirit that is core to its remarkable people,” said Prince William, his wife Kate, his younger brother Prince Harry and his wife Meghan.
"No person should ever have to fear attending a sacred place of worship.
“This senseless attack is an affront to the people of Christchurch and New Zealand, and the broader Muslim community. It is a horrifying assault on a way of life that embodies decency, community, and friendship.”
'Racist hatred'
German Chancellor Angela Merkel said she mourned "with New Zealanders for their fellow citizens who were attacked and murdered out of racist hatred while peacefully praying in their mosques. We stand together against such acts of terrorism".