Iranian women fans are free to enter a football stadium Thursday for the first time in decades, after FIFA threatened to suspend the Islamic republic over its controversial male-only policy.

Iran has barred female spectators from football and other stadiums for around 40 years, with clerics arguing they must be shielded from the masculine atmosphere and sight of semi-clad men.

World football´s governing body FIFA last month ordered Iran to allow women access to stadiums without restrictions and in numbers determined by demand for tickets.

The directive came after a fan dubbed "Blue Girl" died after setting herself on fire in fear of being jailed for dressing up as a boy in order to attend a match.

Women were quick to get their hands on tickets to attend Iran´s 2022 World Cup qualifier against Cambodia at Tehran´s Azadi Stadium on Thursday.

The first batch sold out in under an hour, and additional seats were also snapped up in short order, state media said.