TUNIS, Tunisia — Islamist extremists have targeted two Tunisian Olympic medalists for behaviour and dress seen as un-Islamic, as debate grows over the role of religion and women in the country that unleashed the Arab Spring uprisings.

Radicals on social media networks called on the government to strip Habiba Ghribi, the first Tunisian woman to win an Olympic medal, of her nationality because her running gear was too revealing. She won the silver in the 3,000-metre steeplechase.