Interior Minister Muammer Guler said yesterday that four new suspects have been detained in connection with twin car bombs in Hatay's Reyhanli district, bringing the total number of those under custody to 13. In a speech in Parliament to brief deputies about the investigation into the attack, Guler said that efforts were ongoing to shed light on the bombings. "The masterminds and perpetrators of the attack have been identified. Efforts are ongoing to capture them, too. Suspects detained so far aided and abetted the attacks. They either monitored the sites of bombings or helped attackers who carried out the attack enter Turkey," Guler said, adding that the state knows which terrorist group the attack was carried out the attacks, but did not elaborate.