An 18-year-old has appeared in a New Zealand court charged with distributing the livestream video of a deadly mass shooting at Christchurch's Al Noor mosque.

New Zealand Prime Minister Jacinda Ardern said her office received a "manifesto" from the gunman suspected of killing 50 people in two Christchurch mosques minutes before Friday's attack.

At least 42 people have been killed by flash floods in Indonesia's eastern Papua province, an official said Sunday.

The floods in Sentani, near the provincial capital of Jayapura, were triggered by torrential rain on Saturday, and also left 21 people injured.

New Zealanders flocked to memorial sites to lay flowers and mourn the victims of the twin mosque massacres Sunday, as testimony emerged of epic heroism and harrowing suffering in the gun attack that has claimed 50 lives.

Five Indians were among the 50 people killed by a white supremacist, who opened fire on worshippers at two mosques in Christchurch, in the worst attack on Muslims in New Zealand, the Indian High Commission said Sunday.

Harare: Mozambique, Zimbabwe and Malawi have been hit by a vicious cyclone that has killed nearly 150 people, left hundreds more missing and stranded tens of thousands who are cut off from roads and telephones in mainly poor, rural areas.

Christchurch: India's High Commission in New Zealand on Saturday said that it has been pursuing with local authorities whereabouts of seven Indians and two Indian-origin persons after the terror attacks on two Christchurch mosques.

Harare: At least 24 people have been killed and dozens are missing in parts of eastern Zimbabwe hit by the peripheral effects of tropical cyclone Idai which lashed neighbouring Mozambique, government said Saturday.