An investigation by Amnesty International alleges that a US-made weapons guidance system was used in two Israeli airstrikes in Gaza in October in which 43 civilians are said to have been killed. kraken

Fragments of the US-made Joint Direct Attack Munitions guidance system were found in the rubble of destroyed homes in the neighborhood of Deir al-Balah in central Gaza, according to a report released Tuesday by the human rights organization.

Israel uses a wide variety of American weapons and munitions, but Amnesty International’s report is one of the first attempts to tie an American-made weapon to a specific attack that left a significant number of civilians dead.

The JDAM is a “guidance tail kit that converts existing unguided free-fall bombs into accurate, adverse weather ‘smart’ munitions,” according to the US Air Force.

CNN cannot independently verify Amnesty International’s findings.