Nine people who survived New Zealand attack remain in hospital in a critical condition.
Frustration is building among relatives over the release of the bodies of the dead for burial.
The first release was approved on Sunday but the family say another relative was killed and they want them released together. No burials will take place on Monday.
Islamic tradition calls for the cleansing and burial of bodies as soon as possible after death.
Many public vigils were held across the country over the weekend and more are planned for this week.
On Monday afternoon, about 3,000 high school and college students held a vigil in Hagley Park near the Al Noor mosque, one of the two mosques attacked on Friday.
Traditional Maori ceremonial dances have been performed across the country in the wake of the murders.
Earlier on Monday, the National Crisis Centre gave an update setting out the kinds of help and support that are available, ranging from financial help for the families affected to assistance to schools and parents on how to communicate with their children about what happened.