A man reacts as he speaks on a mobile phone outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

People stand across the road from a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Armed police patrol outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Ambulance staff take a man from outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Ambulance staff take a man from outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

People wait outside across the road outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

People wait outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Police attempt to clear people from outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

A man talks on his mobile phone across the road from a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Video footage of police Picture: Supplied/NZ Herald

Ambulance staff take a man from outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019.(AP Photo/Mark Baker)

Police and ambulance staff help a wounded man from outside a mosque in central Christchurch, New Zealand, Friday, March 15, 2019. (AP Photo/Mark Baker)

Police on the scene at Christchurch mosque shooting 15 March 2019. Picture: Jacob Savage/NZ Herald