New Zealand Prime Minister has expressed disappointment at how the alleged Christchurch gunman was able to send a letter from behind bars.
"It should not have happened," Jacinda Arden told the media in Tuvalu.
In his handwritten letter that's circulating the internet, the 28-year-old writes about his political and social views.
It's understood to be a response to a letter sent to the alleged gunman by a person named Alan who is said to live in Russia.
The gunman is accused of killing 51 people.

Saudi Arabia shuts key oil pipeline after drone attack
BRICS members agree joint declaration at New Delhi summit
Death toll in Philippine ferry fire rises to 76 as rescuers recover more remains
Russian attacks kill six, injure dozens in Ukraine, Moscow says it hits ships, plants
Explosion hits another weapons site in Bulgaria
