Istanbul (CNN) -- A top Turkish official said Saturday that authorities believe those responsible for a pair of deadly car bombings earlier in the day had been in contact with the Syrian government's secret police force. In a news conference, Deputy Prime Minister Besir Atalay said the Syrian government was linked to the attack. "The investigation into the perpetrators is for the most part complete. It has been determined that the organization and its members who carried out the attack were in contact with pro-Syrian regime Al Muhabarat (Syrian Intelligence Services) organization in Syria," he said. "The organization is identified and for the most part the persons involved are identified. "
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NEW: The attackers were in touch with Syria's secret police, a Turkish minister says
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NEW: Two cars loaded with explosive material were set off in the town of Reyhanli
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NEW: 43 people were killed in the attack, in addition to about 100 people injured
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Syrian opposition group: Syrians wounded in the blasts, which occurred 15 minutes apart
But @placeholder's information minister denied that his country had any involvement in the bomb attacks.