A state-run Anattolian news agency states that when asked about a report that a truck containing weapons had been intercepted by Turkish authorities, Davutoglu said: "We have this information and the necessary investigations are being made ... I will give detailed information when necessary."

A report in Germany's Sueddeutsche Zeitung on Thursday cited "western diplomatic sources" as saying that Turkey had stopped the delivery.

In March Turkey told a UN Security Council panel it seized a cache of weapons Iran was attempting to export in breach of a UN arms embargo.