A Syrian human rights group is claiming that ISIS militants executed nine men and a 15-year-old boy in Syria Monday for being gay, the Daily Mail reports.

The Observatory of Human Rights said seven men were shot dead in Rastan, in the Homs province of central Syria, after they were accused of being gay. Two other men and the teen boy were executed in a town called Hreitan, located in northern Aleppo, said Rami Abdel Rahman, the head of the human rights group.

When speaking to the Daily Mail, Rahman said the boy was arrested earlier this year when he was 14 and imprisoned until he was killed this week. He also said the killings were carried out in front of a large crowd but ISIS fighters destroyed all of the footage.

This is the latest in a string of reported public executions of homosexuals by the radical Islamist group. Since late 2014, a number of reports have surfaced, claiming ISIS executed alleged gay men by throwing them off the roofs of tall buildings and stoning them to death. The Daily Mail reports the United Nations estimates that ISIS militants have killed at least 30 people for being gay. The U.N. Security Council held its first meeting regarding ISIS' attack on LGBT people last month.

"In addition to men perceived as gay, trans-identified people and lesbians are among those who have been raped and killed," said Jessica Stern, the executive director of the International Gay and Lesbian Human Rights Commission, according to the Daily Mail.

The newspaper writes: "The Islamic State group is now in control of around a third of Syria and Iraq, and as many as eight million people are thought to live under its brutal rule."