“Many of these people need multiple surgeries due to the complex nature of their injuries, and the need to provide a number of shorter surgeries in a phased way so patients have the best chance of recovery,” he said.

Air New Zealand announces name of victim

The airline Air New Zealand said one of its employees, Lilik Abdul Hamid, was among those killed.

The company’s chief executive, Christopher Luxon, said in a statement that Mr. Hamid had been an aircraft maintenance engineer with Air New Zealand for 16 years.

“He first got to know the team even earlier when he worked with our aircraft engineers in a previous role overseas,” Mr. Luxon said. “The friendships he made at that time led him to apply for a role in Air New Zealand and make the move to Christchurch.”

Mr. Hamid is survived by his wife and two children, Mr. Luxon said.

It was the first public announcement of one of the victim’s names. The police have yet to release a list of those who died.

Little information on other victims as death toll rises

The police said on Sunday that the death toll had risen to 50 as officials discovered another body at the mosque on Deans Avenue, where most of the victims were killed. Another 50 people were injured.

“As of last night we were able to take all of the victims from both of those scenes and in doing so we have located a further victim,” said Mike Bush, New Zealand’s police commissioner.

Mr. Bush said a list of victims’ names has been compiled with the help of senior religious leaders and had been shared with family members. He said the list was an informal one, though, and that officials would not confirm the names publicly until the bodies had been formally identified.