Israel has begun investigating possible breaches of the law by its forces during the Hamas attack on Oct. 7, the military said on Tuesday, following reports some Israeli civilians may have been killed by friendly fire in the fighting.

The left-wing daily Haaretz said the investigation centred on an incident in Kibbutz Be’eri, one of the worst hit communities, in which a house was shelled by a tank, killing 12 Israeli hostages held by Palestinian Hamas gunmen.

Asked about the Be’eri incident, the Israeli military spokesperson, Rear Admiral Daniel Hagari said the army was still focused on fighting in Gaza but was preparing its investigation.