ANTAKYA/ELBISTAN, Turkey, Feb 12 (Reuters) - Rescuers pulled more survivors from the rubble on Sunday, nearly a week after one of the worst earthquakes to hit Turkey and Syria, as Turkish authorities sought to maintain order across the disaster zone and began legal action over building collapses. "We have so far failed the people in north-west Syria," United Nations aid chief Martin Griffiths tweeted from the Turkey-Syria border, where only a single crossing is open for U. It has killed 29,605 people in Turkey and more than 3,500 in Syria, where tolls have not been updated for two days