© SANA / Reuters

Syrian President Bashar Assad believes that by passively supporting the al-Nusra Front and Islamic State terrorist groups, Turkey is playing a most destructive role in the Syrian crisis."Turkey is playing a most negative role in our crisis. That's related directly to [President Recep Tayyip] Erdogan himself and [Prime Minister Ahmet] Davutoglu, because they both reflect the real ideology that they carry in their hearts, which is the Muslim Brotherhood ideology," Assad said in an interview with the French newsmagazine Valeurs Actuelles on Thursday."Some countries support al-Nusra Front, which is al-Qaeda, some other countries support ISIL, while Turkey supports both and other groups at the same time.Assad was quoted as saying by the Syrian news agency SANA.