The lone gunman who killed 51 people in New Zealand's worst peace-time mass shooting on March 15 broadcast the massacre live on Facebook.

Radio New Zealand said Philip Arps, 44, pleaded guilty to two charges of distributing objectionable material after sharing copies of the live-streamed video with about 30 people.

Arps also shared a video that was modified to add cross-hairs and a body count to the images of the massacre, the broadcaster said.

Christchurch District Court Judge Stephen O'Driscoll said that when Arps was asked for his opinion of the video, he replied it was "awesome", Radio New Zealand said.

"It is clear from all the material before me that you have strong and unrepentant views towards the Muslim community," it quoted O'Driscoll as saying during the sentencing.

New Zealand's government has outlawed the sharing of videos of the massacre, which is punishable by up to 14 years in jail.

A self-described white supremacist, Arps was charged with "offensive behavior" and fined NZ$800 ($543) in 2016 after he delivered a bloodied pig's head to Al Noor mosque, according to court documents.

The mosque was among the two targeted in the March massacre.

Last week, Australian Brenton Tarrant pleaded not guilty to 92 charges stemming from the massacre in the two mosques and will stand trial in May next year.

REUTERS

Read: New Zealand Massacre; Users Find Ways to Share Violent Videos