The head of Christchurch Hospital Greg Robertson has confirmed there are 34 people still in hospital, 12 of which are in intensive care.
A total of 50 people were killed in Friday's mosque attacks, while 50 people were injured.
Of the children in hospital, "there's two other children in the hospital at present and their condition is stable". He also said a young girl who was flown to Auckland is still in a critical condition.
Dr Robertson explained the types of injuries they have seen are "more general". "There are more abdominal, chest injuries, quite a lot of soft tissue injuries."
He said the hospital staff "are doing remarkably well" but "physically, we've got people who are tired". The whole experience has been "a bit challenging" for staff because "we're part of a community and we're struggling with it as much as everyone else".
(Correction: Until now we have been reporting that two people injured in Friday's attack are in a critical condition, based on comments from New Zealand Police Commissioner Mike Bush this morning. However, now that Christchurch Hospital head Greg Robertson has said 12 people are intensive care, we have updated this figure in the blog.)