"The international community has a moral obligation to act," said Tayyip Erdogen, the Turkish Prime Minister, speaking at the Friends of the Syrian People conference.
"The promises have not been kept. The regime continues to kill and massacre... The demands of the Syrian people must be met.
"Our main obligation is to speak with one voice and to act with one voice, the latter being more important... In that sense, the Syrian National Council... has declared its strategy, and [which] is supported by other opposition groups. [The strategy document] says ethnic, religious or gender-based descrimination will not be tolerated"
Here are some of the statements by Qatari Prime Minister Hamad Bin Jassim al Thani, who spoke just after Erdogen:
"There is no logic to letting things continue while the Syrian regime defies the proposals for peace.
"I would like to reiterate that we support the six point plan of the UN-Arab League joint plan.
"We should examine deploying Arab joint forces in Syria to maintain peace.
"We also call on the Syrian National Council to unite all the opposition parties."
Just after the Qatari PM spoke, Nabil El Araby, the head of the Arab League, spoke. In his speech, he said the following:
"It is necessary to put the Arab League's six point plan into effect immediately to clear a path for a diplomatic solution.
"It is not acceptable to gather in Tunis, then Istanbul, then France, and to hand down statements of condemnation demanding an end to violence which has been recurring for more than one year. Thousands of lives are lost, and Syria is on the verge of plunging into the unknown.
"We must hold that the future of Syria must be decided by the Syrian people... without any international intervention."