Another from the currently reading pile.
From the Blurb:
Former Special Forces soldier Jeff Bradley is meeting with the mafia in Bari, Italy, to discover the whereabouts of his nemesis—criminal overlord Avni Leka—when he receives a message from an old friend. Barry is on board a tourist bus that has been hijacked by terrorists near Istanbul. Strapped with explosives, it is racing across Turkey to the northern borders of Syria, Iraq and Iran.