ISTANBUL - Western opposition has made it impossible for Muslim states to obtain a ban on blasphemy, including anti-Islamic videos and cartoons that have touched off deadly riots, the Islamic world's top diplomat said.

Ekmeleddin Ihsanoglu, secretary general of the Organization of Islamic Cooperation (OIC), said his 57-nation body would not try again for United Nations support to ban insults to religion, but appealed for states to apply hate-speech laws concerning Islam.

“We could not convince them," said the Turkish head of the 57-member group which had tried from 1998 until 2011 to get a United Nations-backed ban on blasphemy. “The European countries don't vote with us, the United States doesn't vote with us.” Ihsanoglu told a conference in Istanbul at the weekend that the OIC had failed to win a ban at the United Nations and would not revive its long diplomatic campaign for one.

Asked about recent media reports that the OIC wanted to resume the campaign for a blasphemy ban, he said: "I never said this and I know this will never happen." The OIC respects freedom of expression but sees anti-Islam videos and cartoons as an abuse of this freedom that Western countries should sanction through their own blasphemy or hate crime laws, he said. Ihsanoglu's statement clarified the OIC stand at a time when Muslim religious leaders have stepped up demands for an international blasphemy law and politicians have accused Western states of spreading anti-Muslim hatred under the protection of their free-speech laws.

Starting in 1998, the 57-nation OIC won majorities in UN rights bodies and at the UN General Assembly every year for non-binding resolutions on "combating defamation of religions" that Western states opposed as potential threats to free speech. But support for these texts steadily fell to just over 50 percent by 2010, because of strong Western and growing Latin American opposition, and the OIC opted for a weaker resolution against intolerance towards all religions last year.

Ihsanoglu said Western states had a "strange understanding" of free speech if it could be abused to hurt and insult others. Responding at the United Nations last month to the Muslim protests against the video, President Barack Obama condemned the film but staunchly defended free speech. "The strongest weapon against hateful speech is not repression, it is more speech - the voices of tolerance that rally against bigotry and blasphemy," he said.

Explaining his decision not to pursue a world ban, Ihsanoglu said the 1966 International Covenant on Civil and Political Rights and a non-binding 2011 UN General Assembly resolution against religious intolerance provided a sufficient basis for UN member states to take legal action.

“We have enough law and we need to implement these laws,” he said. Muslim politicians have stepped up their denunciations of Western free speech policies following the video and cartoons.  "We cannot accept insults to Islam under the guise of freedom of thought," Turkish Prime Minister Tayyip Erdogan told the Istanbul conference. "We Muslims want the same respect shown to Jewish culture, which we support," Turkish Foreign Minister Ahmet Davutoglu said.