Iran\u2019s only female Olympic medalist said she defected from the Islamic Republic in a blistering online letter that describes herself as \u201cone of the millions of oppressed women in Iran.\u201d\r\nTaekwondo athlete Kimia Alizadeh posted the letter on Instagram as Iran\u2019s semiofficial ISNA news agency said she had fled to the Netherlands. She criticized wearing the mandatory hijab headscarf and accused officials in Iran of sexism and mistreatment.\r\n\u201cWhatever they said, I wore,\u201d Alizadeh wrote in the letter posted Saturday. \u201cEvery sentence they ordered, I repeated.\u201d\r\nShe described the decision to leave Iran as difficult, but necessary.\r\nThere was no immediate reaction from Iranian authorities. ISNA said Alizadeh had been reported injured and unable to compete. Their report suggested Alizadeh may try to compete under another nation\u2019s flag at the 2020 Olympic games in Tokyo.\r\nAlizadeh, 21, won a bronze medal at the 2016 Olympics in Rio de Janeiro.\r\nHer defection comes amid unprecedentedly high tensions between Iran and the United States.\r\nIn recent years, many Iranian athletes have left their country, citing government pressure. In September, Saeed Mollaei, an Iranian judoka, left the country for Germany. He said Iranian officials had forced him to not compete with Israeli judoka.\r\nAlireza Faghani, an Iranian international football referee, also left Iran for Australia last year.