Erdogan was once a close ally of the Syrian president Bashar al Assad.
The broadcast said Syrian President Bashir al Assad said the unilateral action of one power could lead to dire consequences.
Qatar has been supportive of the Syrian rebels fighting against President Bashar al-Assad's regime, and al-Jazeera has covered the Syrian conflict extensively since it began.
Al-Assad and other top officials, including Prime Minister Wael al-Halqi, celebrated the birth of the Prophet Mohammed on Thursday inside a Damascus mosque, as shown live on state television.
British Prime Minister Tony Blair spoke to Syrian President Bashar al-Assad over the weekend, and Straw said he held talks with his Syrian counterpart Farouk al-Sharaa on Friday.
Security Council resolutions that many other nations said could have pushed al-Assad to stop the killing.
Coming up, President Obama said it again today: Syrian President Bashar al-Assad must go.
NPR: Managing The $30 Million 'One Fund' To Aid Boston Victims
At one time, Erdogan and al-Assad had close ties, but the war has made them antagonists.
"I believe the destiny of Bashar al-Assad should be decided by the Syrians themselves, " he said.
The presence of Syrian troops showed Iraqi leaders' "firm co-operation" with President Bashar al-Assad, it added.
BBC: Map showing Akashat in Iraq and al-Waleed border crossing
Their goal will be to persuade President Bashar al-Assad to stop the killing, the official said.
Earlier this year, Syrian President Bashar al-Assad announced a plan to resolve his country's.
But in demanding al-Assad's ouster, Blair said, world powers must be careful about what comes next.
Al-Assad said Sunday that some of the captured terrorists hail from Tunisia and Libya.
U.S. leaders have consistently criticized al-Assad, though their support for those opposing him has been limited.
Mr Brahimi is expected to visit Syria and meet President Bashar al-Assad on 8 September.
BBC: UN envoy Brahimi says Syria mission 'nearly impossible'
Medvedev said he blames both the opposition and al-Assad's government for refusing to negotiate.
CNN: Al-Assad's grip on power "slipping away," Medvedev says
In neighboring countries, there is widespread condemnation for al-Assad, the Pew Research Center reported Thursday.
But al-Assad has made similar commitments before, without following through on them, world leaders have said.
Despite widespread condemnation among world leaders, Syrian President Bashar al-Assad still has his supporters.
Brahimi said that al-Assad told him he was considering running again next year for president.
Turkish Prime Minister Recep Tayyip Erdogan has repeatedly called on Syrian President Bashar al-Assad to step down.
All of Obama's calculations have now been challenged by what appears to be al-Assad's use of chemicals.
Syrian President Bashar al-Assad has said Syrian forces hit the plane over territorial waters with antiaircraft gunfire.
WSJ: Turkey Finds Pilots' Bodies, Providing New Spark for Tensions
Mr. Keane and Ms. Pletka also fail to understand what Bashar al-Assad's reaction to an attack might be.
WSJ: Think Things Through Before Opening Fire in Syria �� Letters to the Editor
The conflict in Syria began almost two years ago with demonstrations against the government of President Bashar al-Assad.
Mr Obama warned in December that Syrian President Bashar al-Assad would face "consequences" if he used chemical weapons.
White said the Russian and Iranian governments, longtime friends and allies to al-Assad, are constantly assessing the situation.
Meanwhile, President Bashar al-Assad called on the emerging "Brics" nations to seek an end to the Syrian conflict.
In the cache of nearly 3, 000 e-mails obtained by CNN, it does not appear al-Assad reciprocates her advances.
应用推荐