The United Nations has cancelled a planned marathon in Gaza after the Palestinian territory's Hamas rulers banned women from participating.
It was a new attempt by the Islamic militant group to impose its ideology inside the crowded coastal strip.
The dispute threatened to further strain the already delicate relationship between Hamas and the United Nations. Gaza sportswomen met the news with resignation, saying their conservative society had made it difficult to train even before the ban.
Since seizing power in Gaza in 2007, Hamas has issued a number of edicts meant to constrain the freedoms of women. But a number of these initiatives fizzled out in the face of public opposition, making the ban on female runners somewhat surprising. Hamas had also recently relaxed some of its earlier orders imposing its conservative interpretation of Islamic law.
Gaza's Cabinet secretary, Abdul-Salam Siam, said women running in public violated Palestinian customs. "We don't want women and men mixing in the same race," Siam said. "We don't want any woman running uncovered."
Siam said girls could join the event, just not grown women. The race, scheduled for April 10, would have been the third annual marathon in Gaza. Siam would not say why Hamas did not ban women from the two previous races in 2012 and 2011.
The race was meant to run the entire length of the tiny territory - which is slightly shorter than the official length of a 26.2 mile (42km) marathon. Some 800 people registered, including 266 Palestinian women and 119 women from abroad, UN spokesman Sami Mshasha said.
Mshasha said the UN was surprised when Hamas officials informed them that women couldn't participate because organisers have always been careful to ask participants to dress modestly to avoid offending Gaza residents. Most donned full-length track suit bottoms and long-sleeved shirts in previous races. Gaza rights groups urged the UN to defy Hamas and hold the marathon.
The marathon was initially organised to draw attention to Gaza, at the time under an Israeli and Egyptian blockade that was imposed since the militant group Hamas seized power. The blockade has since loosened, although restrictions remain on exports and imports of some raw materials. It also remains difficult for Palestinians to leave Gaza.
Islam has no specific ban on women running, even under the conservative interpretations that most Palestinians follow. But some Gaza residents, including Hamas members, follow even sterner tribal norms that frown on women moving in ways that allow their body shape to be discerned.