At least one victim was expected to be returned tonight, he said, and emphasised that "the most important thing is to ensure that identifications are done to 100 per cent certainty".
New Zealand Prime Minsiter Jacinda Ardern said during a visit to Christchurch, NZ on Saturday that the main suspect in the shootings at two mosques in the city had meant to "continue his attack".
Friday's attack, which Ardern labelled terrorism, was the worst ever peacetime mass killing in New Zealand and it has raised its security threat level to the highest.
Responding to commentary about police response times to the attacks, Commissioner Bush said: "I can tell you that within six minutes of police being called. police staff were on the scene". The officials are also interrogating his European tour and the persons he met during his stay.
During the emotional service the woman all held a placard with the words: "Peace will save the world #Solidarity with New Zealand mosque victims".
The Australian man, Tarrant, live-streamed footage of himself going room-to-room, victim to victim, shooting the wounded from close range as they struggled to crawl away. Tarrant was remanded without a plea and is due back in court on April 5 where police said he was likely to face further charges.
Most of the victims of the attacks were immigrants from Pakistan, India, Malaysia, Indonesia, Turkey, Somalia and Afghanistan. "We stand in solidarity with the people of New Zealand and their government against this vicious act of hate", White House Press Secretary Sarah Sanders said in a statement to People.
The death toll in the New Zealand mosque shootings has risen to 50 after investigators found another body at one of the mosques, New Zealand Police Commissioner Mike Bush said on Sunday.
About 200,000 Indian and Indian-origin people live in New Zealand. "It was his intention to continue his attack", the prime minister said.
TESSA BURROWS via Getty ImagesResidents pay respect by placing flowers for the victims of the mosques attacks in Christchurch on Saturday.
It also said a group of Community leaders is being constituted in Christchurch and their names and numbers will be circulated shortly.
"Our prayers are with the families of the deceased, the injured and all others impacted by this tragedy".
Islamic custom dictates that the dead should be buried within 24 hours of death, but the complex investigation into the massacre of 50 worshippers during Friday prayers made a quick process hard.
Ms Arden stated the deadly attacks was one of New Zealand's "darkest days" and vowed to change the country's current gun laws.
The AR-15 is a semi-automatic version of the United States military M16 rifle.
The youngest person missing and feared dead is three years old, Greenhill tells NPR's Weekend Edition.
Pence also affirmed US cooperation in ensuring all the perpetrators were brought to justice.