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.

India caps airline fares as IndiGo crisis leaves hundreds stranded for fifth day
Pakistan, Afghanistan border clashes kill 5, officials say
Gaza talks at critical moment, ceasefire not complete, Qatar's PM says
Indonesians climb over logs in walk to aid centre as flood deaths rise over 900
Russian drones, missiles hit railway hub near Ukraine's capital
