JEBALIYA REFUGEE CAMP, Gaza Strip (AP) — Israel’s defense minister said Saturday that Hamas leaders are the “only culprits” in continued bloodshed on the Gaza border, as the European Union and a top United Nations official made new demands to investigate shootings of unarmed Palestinians by Israeli soldiers, including the killing of a 14-year-old boy.

Avigdor Lieberman’s comments on Twitter came a day after four Palestinians, including the teen, were shot and killed by Israeli army fire from across the border fence, according to Gaza health officials.

More than 150 Palestinians were wounded Friday, in the fourth round of weekly Hamas-led mass protests in the border area.

The teen, Mohammed Ayyoub, was about 150 meters (yards) from the fence when he was hit, Gaza photographer Abed Alhakeem Abu Rish told The Associated Press. He said that the boy was about to take cover when he was shot and fell to the ground, collapsing head first. The Israeli military says it is investigating the incident.

The latest deaths brought to 32 the number of Palestinians killed by Israeli troops in protests since late March. More than 1,600 have been wounded by live rounds in the past three weeks, according to the Gaza Health Ministry.

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