Plumes of smoke rise into the air over the Syrian border town of Azmarin.<br/> <br />Government forces bombarded the area with mortar shells - some dangerously landing on Turkish territory.<br/> <br />Turkish troops have been placed along its 900 km border with Syria in the past week after bullets and shells landed on their side of the border.<br/> <br />Turkey shelters nearly 100,000 Syrian refugees in camps and more are arriving daily.<br/> <br />Frightened residents here in Azmarin have been fleeing across the border.<br/> <br />NATO-member Turkey was once a close ally of embattled Syrian President al-Assad, but turned against him after his violent response to the Syrian uprising in which more than 30,000 people have died.
