Turkey, already hosting nearly 70,000 Syrians fleeing the 17-month-old revolt against President Bashar al-Assad, may soon be unable to cope, Ahmet Davutoğlu told the Hürriyet newspaper.
"If the number of refugees in Turkey surpasses 100,000, we will run out of space to accommodate them. We should be able to accommodate them in Syria. The United Nations may build camps in a safe zone within Syria's borders," he was quoted as saying.
Syrian opposition fighters have expanded the territory they hold near the Turkish border in the last few weeks and opposition groups have said they need the protection of no-fly zones and safe havens patrolled by foreign forces.
US Secretary of State Hilary Clinton said on Aug. 11 that Washington and Turkey were looking at all measures to help the insurgents, including a no-fly zone, although no member of the UN Security Council has formally proposed such a move and the option has gained little traction so far.
A no-fly zone and a NATO bombing campaign helped Libyan rebels overthrow Muammar Gaddafi last year. The West has shown little appetite for repeating any Libya-style action in Syria, and Russia and China strongly oppose any such intervention.
Turkey began handing out food and other humanitarian aid to Syrians on the border on Saturday.
Davutoğlu was quoted as saying Turkey would attend a ministerial meeting of UN Security Council members planned for Aug. 30 and would abide by any decisions made at the meeting.