The January US drone strike in Iraq that killed top Iranian general Qassem Soleimani and nine other people represented a violation of international law, a UN human rights investigator said on Monday.

The United States has failed to provide sufficient evidence of an ongoing or imminent attack against its interests to justify the strike on Soleimani’s convoy as it left Baghdad airport, said Agnes Callamard, UN special rapporteur on extrajudicial, summary or arbitrary executions.