
"These despicable acts show total disregard for the life of civilians ... I express full solidarity with the people and the authorities of our ally Turkey," Rasmussen said in a statement.
"I extend my deep condolences to the families and loved ones of those killed, and my sympathy to those who were wounded," he said.
Reports said four blasts occurred on Saturday in the town of Reyhanli near the border with Syria. The conflict in Syria has repeatedly spilled across borders to Turkey.
At Turkey's request, NATO has deployed six Patriot missile batteries to protect Turkish border cities from the potential threat of Syrian missile attacks.
NATO condemns bomb attacks in Turkey.