New Zealand has banned possession and distribution of a publication reportedly written by the terrorist behind the fatal attacks in Christchurch, which claimed the lives of 50 people.

The decision made by the Office of Film and Literature Classification says the manifesto is deemed objectionable because of its depiction and promotion of extreme violence and terrorism.

“It identifies specific places for potential attack in New Zealand, and refers to the means by which other types of attack may be carried out. It contains justifications for acts of tremendous cruelty, such as the deliberate killing of children,” the agency said.

New Zealand residents, along with media outlets, are obliged to delete the copies and links to the publication.

Before the attack Brenton Tarrant distributed on the web and sent some politicians his manifesto containing anti-migrant and anti-Muslim wordings.

Tarrant was shooting the attack on video which was dismantled on social media. Facebook said they deleted 1.5 million videos of the attack over 24 hours.

After the attack New Zealand's government decided to ban automated guns and rifles.