<span style="color: #222222;">Greece has blocked nearly 10,000 migrants trying to enter from the Turkey border over the past 24 hours.</span><br />'' <span style="color: #222222;"><br />'' A Greek government source said today that its army and police had stopped thousands from entering its territory.</span><br />'' <span style="color: #222222;"><br />'' The source said, huge crowds tried to cross into Greece via the Kastanies Forest in the early hours today. Greek authorities said, 73 migrants had been arrested.</span><br />'' <span style="color: #222222;"><br />''Greek security forces are patrolling the Evros river shores, a common crossing point, and have issued loudspeaker warnings not to enter Greek territory.</span><br />'' <span style="color: #222222;"><br />'' Yesterday clashes erupted along the border, where Greek police fired tear gas at migrants who in turn lobbed rocks at officers.</span><br />'' <span style="color: #222222;"><br />''<br />''Meanwhile, the EU's border protection agency Frontex said, it is on high on Europe's borders with Turkey as thousands of migrants seek to enter the bloc.</span><br />