Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Fears of Escalating Conflict in Syria Grow Dorian Jones ISTANBUL - Fears of an escalating conflict in Syria grew Friday as Turkish forces pounded Syria's military in retaliation for the killing of 33 Turkish soldiers. In the aftermath of the violence, Turkish President Recep Tayyip Erdogan said the country would no longer try to keep migrants from reaching Europe. Thousands of migrants have gathered at Turkey's borders with Greece and Bulgaria. Greek police fired tear gas Saturday at migrants trying to cross into the country. With Turkey already hosting over three-and-a-half million Syrians who fled the civil war, Erdogan has said his country can take no more. Idlib hosts over 3 million Syrians, the United Nations said this month. Nearly a million had been forced from their homes from recent fighting, many of whom are already on the Turkish border. In a move seen as putting pressure on the European Union, the spokesman of the ruling AKP Omer Celik declared Friday Turkey is "no longer able to hold refugees," seeking to enter Europe. Local media reported free buses were being provided to take people to the border or sea crossing points to Greece. .