The remarks from Shahindokht Molaverdi, whose brief covers women and family affairs, could inflame a weeks-long row between the government and conservative opponents of its plans to ease restrictions at sporting events.
Volleyball is highly popular in Iran and Molaverdi last week said a limited number of women would, in contravention of a ban, be allowed to watch two eagerly anticipated matches against the United States in Tehran.
But security officials later contradicted her. Streets surrounding the Azadi Sports Complex were heavily policed before and during last night's first match, with officers forbidding women from going anywhere near the venue.
A few women pictured on social media watching the match were not Iranian, the Fars news agency reported today, but members of the Russian, Italian and Hungarian embassies in Tehran.
In the aftermath, Molaverdi, writing on Facebook, hit out at the ban, saying the government had respected the views of religious leaders while trying to respond to "the legal demands of another section of society".
She criticised groups who said they would spill blood if women were allowed into the stadium, suggesting such opposition came "from those who were denounced two years ago by voters, and who had crawled into their cave of oblivion for eight years".
Before and after the match women took to Twitter and other social networks using the hashtag #LetWomenGoToStadium in protest, with the row casting a shadow over Iran's 3-0 victory.
