Story highlights ISIS claims responsibility for the attack at the church in Helwan, near Cairo

A witness says there were two attackers

Helwan, Egypt (CNN) Nine people were killed Friday after gunmen opened fire at a church near Cairo, officials said, the latest in a string of attacks on minority Coptic Christians in the country this year.

The Ministry of the Interior said on its Facebook page that the suspected attacker was 33-year-old Ibrahim Ismail Ismail Moustafa, and he was known to have participated in five different attacks between 2016 and 2017. The ministry's statement called the suspect "a well-known terrorist who participated before in attacks on police men and civilians."

ISIS claimed responsibility for the attack late Friday in a statement from the ISIS-affiliated news agency Amaq. The group and its affiliates have previously claimed responsibility in several attacks on the minority Christians in other parts of the country.

Egyptian officials inspect the site of Friday's attack.

Witnesses told CNN that people were gunned down outside the church on their way out after a service. A CNN reporter at the scene saw bullet holes and broken glass in the church's facade, and pools of blood on the ground.

The assault was carried out at the St. Mina Coptic Church in Helwan, a district on the southern outskirts of the Egyptian capital. A witness told CNN that he saw two attackers, but officials have given conflicting accounts of how many people were involved.

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