Israeli soldiers had shot toward Palestinians holding white flags outside an officially approved route near an aid distribution center in Gaza in mid-June, the Wall Street Journal reported Sunday, citing an IDF combat reservist.

The soldiers opened fire once the crowds crossed what they considered to be a red line. Soldiers are ordered to fire warning shots at people’s knees or in the air, but the reservist said mistakes happen.

In late June, Haaretz reported on army-mandated open fire at unarmed crowds seeking aid as a crowd control measure, leading to an internal military probe. Earlier in July, U.S. employees told the Associated Press that contractors guarding GHF aid distribution sites are also using live ammunition and stun grenades, which the GHF denied.