A panel set up by the Saudi-led coalition fighting in Yemen to investigate civilian casualties found a series of deadly airstrikes largely justified, citing the presence of armed militiamen at the homes, schools and clinics that were targeted.

The Joint Incidents Assessment Team said on Tuesday it had discovered mistakes in only three of 15 incidents it reviewed, and maintained the coalition had acted in accordance with international humanitarian law.

Saudi Arabia and its allies have been bombing the Iran-aligned Houthi movement since the Houthis seized much of northern Yemen in 2015.