Turkey now believes fighters loyal to Syrian President Bashar al-Assad were behind the devastating twin bombs that tore through the southern city of Reyhani, killing at least 43.<br/> <br />Syria has denied it but fears are growing inside Turkey that this attack drags them closer to war with their neighbour.<br/> <br />As investigators look for clues as to who is behind the blast, residents of Reyhanli say there is little doubt.<br/> <br />"It's obvious who did it," says this man, pointing to Syria.<br/> <br />One analyst says Turkey may well respond with force.<br/> <br />(SOUNDBITE) (Turkish) ANALYST ALI NIHAT OZCAN, SAYING:<br/> <br />"Turkey will ask the international community to put more pressure on Syria through diplomacy but at the same time I assume it will try to retaliate with an undercover operation."<br/> <br />The foreign minister said Turkey reserves the right to take "every kind of measure".<br/> <br />Turkey has long supported rebels engaged in a bitter civil war with Syria's government.
