(ANSA-AFP) - SOFIA, 28 FEB - Bulgaria joined Greece on Friday in boosting border controls after Turkey said it would no longer prevent refugees from going to Europe. "We sent police forces to our borders (with Turkey) early in the morning. It is worrying that the Turkish border guards have withdrawn," Prime Minister Boyko Borisov told journalists. "There is a real danger at the moment of the events that happen there: people are fleeing bombardments." A Turkish senior official told AFP on Friday that Turkey - home to almost four million Syrian refugees - would no longer close its border gates to those who want to go to Europe.(ANSA-AFP).