At least 28 people died and hundreds were trapped through the night in freezing cold and darkness after avalanches closed a mountain highway tunnel in Afghanistan. Passengers trapped in the Salang pass, the main route across the Hindu Kush mountains, said by telephone that they were freezing to death and being suffocated by car fumes, and had seen cars filled with dead bodies after being stuck through the night. A force of 600 soldiers plus police units and other emergency workers had managed to evacuate 1,500 trapped people, including at least 70 who were injured, the Defense Ministry said in a statement that gave a death toll of 28. Days of heavy snow triggered avalanches blocking the 2.6 km (1.6 mile) long Soviet-built tunnel, a historic engineering feat that links Kabul and Afghanistan's north, connecting the Indian subcontinent to Central Asia through the treacherous mountain pass at 3,400 meters (11,000 feet). “I saw five dead bodies from a car parked behind us, and so far the government has not done enough to save our lives,” Qazi Azhar, an Afghan judge who was caught in the pass, told Reuters by mobile phone. Another passenger, Ghulam Yahya, said passengers inside the tunnel were suffering from fumes. “Many others will die if we don't get help on time,” he said. President Hamid Karzai said he was saddened by the deaths and ordered government workers to do all possible to open the pass. Abdul Mateen Edraak, head of Afghanistan's National Disaster and Preparedness Center, said fears were greatest for passengers stuck in cars exposed to the extreme cold.