(JTA) – A Palestinian man was killed and at least one was injured as they “attempted to damage a security infrastructure in the northern Gaza Strip,” the Israeli army said.

Other reports said the men were attempting to breach the border security fence.

The Israel Defense Forces said the death and injury occurred when the bomb that a group of five Palestinian men was setting near the security infrastructure exploded. As many as three may have been injured, later reports said.

The incident occurred several hours after the IDF bombed Hamas military targets inside of Gaza in a retaliatory attack.

CAP: Palestinian protesters clash with Israeli soldiers near the border fence east of Gaza City on December 22, 2017. (AFP Photo/Mohammed Abed)