Sydney's iconic Opera House is lit up with the silver fern of New Zealand to show support and solidarity following Friday's deadly Christchurch attack that left the nation in shock. /VCG Photo

The silver fern, whose fronds stand for "strength," "stubborn resistance" and "enduring power," has been regarded as a symbol of New Zealand's national identity since the 1880s. /VCG Photo

"We feel the loss in Christchurch especially deeply given the closeness of our two countries," said New South Wales Premier Gladys Berejiklian, who added that "It is as though this has occurred on our own soil." /VCG Photo

Australian Brenton Tarrant, the 28-year-old main attack suspect, was charged with one count of murder on Saturday. But with 49 dead from his mass shootings at two mosques in Christchurch, New Zealand Prime Minister Jacinda Ardern said more charges would be laid against him. /VCG Photo