Children place flowers at a memorial as a tribute to victims of the mosque attacks, near a police line outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

People react at a flower tribute area at Botanical Gardens in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

A woman places flowers at a memorial as a tribute to victims of the mosque attacks, near a police line outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

A forensic worker is seen outside Masjid Al Noor after Friday's mosque attacks in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

A woman reacts at a flower tribute area at Botanical Gardens in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

People prepare to move the flowers after police removed a police line, outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

Flowers and signs are seen at a memorial as a tribute to victims of the mosque attacks, near a police line outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

Flowers and signs are seen at a memorial as tributes to victims of the mosque attacks near Linwood mosque in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

People react after placing flowers at a memorial as a tribute to victims of the mosque attacks, near a police line outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

A police officer patrols outside Masjid Al Noor mosque after Friday's mosque attacks in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

Flowers and a New Zealand national flag are seen at a memorial as tributes to victims of the mosque attacks near Linwood mosque in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

People place candles at a flower tribute area at Botanical Gardens in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

People move the flowers after police removed a police line, outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

New Zealand Prime Minister Jacinda Ardern meets representatives of the Muslim community at Canterbury refugee centre in Christchurch, New Zealand March 16, 2019. New Zealand Prime Minister's Office/Handout via REUTERS.

A woman reacts at a flower tribute area at Botanical Gardens in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

People place flowers at a memorial as a tribute to victims of the mosque attacks, near Linwood mosque in Christchurch, New Zealand, March 16, 2019. REUTERS/Edgar Su

Aktar, holds up a photo of her husband who she says is missing after Friday's mosque attacks, outside a community center near Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva

A woman reacts as she pays a tribute to victims of the mosque attacks outside Masjid Al Noor in Christchurch, New Zealand, March 16, 2019. REUTERS/Jorge Silva