Regional officials in Pakistan have updated the death toll from last week’s earthquake to 79,000. The new figure comes as the World Food Programme is warning over half a million survivors have yet to receive any aid. The group said time is running out to save thousands of lives because of the approaching winter season. Hypothermia is a major risk to scores of survivors sheltered only by plastic sheeting in sub-zero temperatures. Meanwhile aftershocks have rocked parts of northern Pakistan triggering landslides that may further hamper the relief effort. Aid officials responsible for the upper Neelum valley say many survivors were already weeks away from being reached. U.N. disaster coordinator Rob Holden said: “Many people out there, we are not going to get to in time. Some people who have injuries don’t have a chance of survival.”