Story highlights ISIS often attacks fellow Muslims who don't support its view of Islam, Mideast expert says

Attack occurred during a soccer ceremony in Iskandariya, a city in central Iraq

ISIS claimed responsibility for the attack, which killed at least 25 people

(CNN) A man wearing a suicide belt walked into an Iraqi soccer stadium Friday and blew himself up -- killing at least 25 people and wounding 90 more, security officials said.

A crowd had gathered for a ceremony to mark a championship for a popular local soccer team when the bomb exploded, the head of the Babil province security committee, Baydhan al Hamdani, told CNN.

A video posted on YouTube showed soccer players approaching a table holding trophies before an explosion occurred. CNN could not independently authenticate the video.

The attacker struck at al-Shuhadaa stadium in the Babil province city of Iskandariya, roughly 30 miles (50 kilometers) south of Baghdad.

ISIS claimed responsibility, according to a statement posted online by supporters.

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