RAFAH, Gaza Strip — A Palestinian family said it had killed one of its members Friday after Gaza’s Hamas rulers said he aided Israel in killing three of the terrorist group’s commanders.

The family said in a statement that a relative shot Ahmed Barhoum dead, but did not say which family member pulled the trigger. It said they followed developments in the Hamas investigation and believed their son was guilty.

The family noted the relative was arrested and interrogated by the “resistance,” meaning he was detained outside the Palestinian litigation system. There was no immediate statement from Hamas.

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The Hamas commanders were killed near the end of the 50-day war with Israel in 2014 during an airstrike on a house.

Hamas has executed dozens of Palestinians for collaboration since seizing Gaza in 2007.

Times of Israel staff contributed to this report.