ANKARA (Reuters) - France and Turkey called on Friday for greater international pressure on Syria to end the violent crackdown on opponents of President Bashar al-Assad, while activists said security forces shot dead five people protesting after weekly prayers. French Foreign Minister Alain Juppe said he doubted Syria would respond positively to an Arab League initiative aimed at stopping the bloodshed that has killed more than 3,500 people, according to a United Nations count. The Arab League has suspended Syria and given it until the end of the week to heed the Arab peace plan that entails a military pullout from around restive Syrian cities and towns, threatening sanctions unless Assad acts to halt the violence.