Clashes broke out overnight on Greeces border with Turkey early Wednesday, after 500 migrants attempted to break down a border fence and enter Greece. The clashes kicked off at 2 a.m. and lasted for roughly two hours during which Greek police used tear gas to repel the push to break down the fence south of the Kastanies border crossing. Greek police said Turkish authorities also fired tear gas at the Greek border. An estimated 2,000 migrants are still camped out on the Greek-Turkish border, weeks after Turkey declared its borders to Europe open. The Turkish announcement has encouraged migrants and refugees living in the country to try cross into European Union member Greece. Tens of thousands of people headed to the border despite Greece´s insistence that its eastern border, which is also the EU´s external border, was shut, the Associated Press reported. This came months after Turkish President Recep Tayyip Erdogan threatened he would open his borders and allow millions of refugees into Europe unless the EU provided more support for refugee care in Turkey.