"With this attack, hostility towards Islam that the world has been has been idly watching and even encouraging for some time, has gone beyond the boundaries of individual harassment to reach the level of mass killing", said Turkish President Recep Tayyip Erdogan.
Forty-one of the people were killed at Al Noor Mosque, while seven died at Linwood Mosque.
Prime Minister Ardern previously described the attack as "one of New Zealand's darkest days", adding: "What has happened here is an extraordinary and unprecedented act of violence".
One man was arrested and charged with murder, and two other armed suspects were taken into custody while police tried to determine what role they played.
Police found two explosive devices attached to the suspects' vehicles, which have since been disarmed.
In Malaysia, Anwar Ibrahim, leader of the biggest party in the country's ruling coalition, said one Malaysian had been wounded in the attack, which he described as a "tragedy facing humanity and universal peace". Prime Minister Jacinda Ardern has called the shooting an "unprecendented attack of violence".
"We're obviously greatly disturbed on what seems to be a terror attack, this hate crime in New Zealand".
In Europe, German Chancellor Angela Merkel said she was deeply saddened: "I mourn with the New Zealanders for their fellow citizens who were attacked and murdered out of racist hatred while peacefully praying in their mosques". The queen also paid tribute to emergency services and volunteers supporting the injured.
Former Eagles WR Golden Tate stays in the NFC East
Tate acknowledged the signing on Twitter, tweeting an image of the "I love New York" logo and making it his new profile picture. And according to Ian Rapoport of the NFL Network, the Pats are actually showing interest in the veteran slot receiver.
United States president Donald Trump said that his "warmest sympathy and best wishes goes out to the people of New Zealand after the awful massacre in the mosques,".
In France, home to western Europe's largest Muslim community, Interior Minister Christophe Castaner ordered regional authorities to bolster security at mosques as a precaution. "London will always celebrate the diversity that some seek to destroy".
A spokesperson for the Muslim Community Center here in Indy told FOX59 he's been sick over the news. He said he wants the city's Muslims to know that New Yorkers "truly embrace" them and "have their backs". "I am unable to sleep well", said Muhammad, board member at the Muslim Community Center on Indy's south side.
Manager Khaled Mashud said the team saw "bloodied people coming out of the mosque. we kept our heads down in the bus in case of any firing".
On the other hand, Foreign Minister Shah Mehmood Qureshi also condemned the terrorist attack in New Zealand in strongest terms. "This has been done deliberately to also demonise legitimate Muslim political struggles". All mosques across the country have been urged to shut their doors, and people have been advised to refrain from visiting these premises until further notice.
With regard to planning the attack, he wrote: "I begun planning an attack roughly two years in advance and an attack at the location in Christchurch three months in advance".
Israeli Prime Minister Benjamin Netanyahu called the attacks a "brazen act of terror". Before Friday's attack, the deadliest shooting in modern history occurred in the small town of Aramoana in 1990, when gunman David Gray shot and killed 13 people following a dispute with a neighbor.
Moreover, Christchurch mayor Lianne Dalziel said she was "shocked beyond words" by the shootings.
New Zealand is also generally considered to be welcoming to migrants and refugees.