A child has died and six people have been injured - one critically - after a house fire in Christchurch. Emergency services were called to the property in Whitehall St, in the suburb of Mairehau, about 8.25pm yesterday, police said in statement this morning. "Sadly, a child died at the scene. One person received critical injuries, three were in a serious to moderate condition, and two received minor injuries." The injured are two adults and four children and were all transported to hospital. Detective Senior Sergeant Jo Carolan said a scene guard was put in place at the property overnight. "Police will be carrying out a scene examination today, including working with Fire and Emergency New Zealand Fire investigators." The cause of the fire was still to be determined, but it was not believed to be suspicious. At this stage, there is no further information available, police said. An RNZ reporter at the scene today said neighbours told her a family lived there.…