The United States and Chile will host the meeting that will be open to all member-states interested in the plight of lesbian, gay, bisexual and transgender people persecuted by the jihadists.
"This will be a historic meeting. It will be the first Security Council meeting on LGBT rights," Power told reporters.
UN envoys will hear accounts from Adnan, an Iraqi who fled northern Iraq after being targeted as gay, Syrian Subhi Nahas, who was also threatened and Jessica Stern, the director of the International Gay and Lesbian Rights Commission.
Power noted that Islamic State attacks on gays had been well-documented.
The Syrian Observatory for Human Rights reported last month that IS fighters dropped two men from a building in the city of Palmyra and then stoned them to death.
In December, IS posted photographs showing jihadists throwing a man off a rooftop and then stoning him to death because he was gay.
Two men were stoned to death in Syria in November after declaring that they were gay.
It remained unclear how many countries with anti-gay laws would attend the meeting, but Power said she expected a good turnout.
The United States is leading an international coalition that has vowed to defeat the jihadist group, which declared a caliphate in June 2014 after seizing the Iraqi city of Mosul.
Islamic State now controls large swathes of territory in Iraq and Syria, and has gained a foothold in Libya, Yemen, Egypt and elsewhere in the Middle East.
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"This will be a historic meeting. It will be the first Security Council meeting on LGBT rights," Power told reporters.
UN envoys will hear accounts from Adnan, an Iraqi who fled northern Iraq after being targeted as gay, Syrian Subhi Nahas, who was also threatened and Jessica Stern, the director of the International Gay and Lesbian Rights Commission.
Power noted that Islamic State attacks on gays had been well-documented.
The Syrian Observatory for Human Rights reported last month that IS fighters dropped two men from a building in the city of Palmyra and then stoned them to death.
In December, IS posted photographs showing jihadists throwing a man off a rooftop and then stoning him to death because he was gay.
Two men were stoned to death in Syria in November after declaring that they were gay.
It remained unclear how many countries with anti-gay laws would attend the meeting, but Power said she expected a good turnout.
The United States is leading an international coalition that has vowed to defeat the jihadist group, which declared a caliphate in June 2014 after seizing the Iraqi city of Mosul.
Islamic State now controls large swathes of territory in Iraq and Syria, and has gained a foothold in Libya, Yemen, Egypt and elsewhere in the Middle East.
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