According to Amnesty International: "Saudi Arabia-led coalition forces appear to have used a Brazilian variant of internationally banned cluster munitions on a residential neighbourhood in Ahma in Sa’da, northern Yemen, this week, wounding at least four people and leaving dangerous unexploded submunitions strewn around the surrounding farmland, Amnesty International said today. […] The cluster munition attack was carried out at around noon on 27 October 2015 in a residential area of Ahma, approximately 10km north-west of al-Talh in Sahar directorate, near Sa’da city. Ahma is approximately 40km south of the border with Saudi Arabia. A local activist who visited the site several hours after the attack found three unexploded submunitions around 20m apart, one in the field of a local farm, another near a greenhouse and the third next to a mosque. The nearest military objective known to Amnesty International is a market in al-Talh, approximately 10km to the south-east, which is known to sell weapons and has been targeted by airstrikes on at least five different occasions since the start of the Saudi Arabia-led bombardment campaign in March. Eyewitnesses described how, despite the complete absence of military aircraft, a series of rockets screamed across the sky and exploded in mid-air, followed by dozens of explosions on the ground. These accounts and the remnants found on the ground are consistent with the use of cluster munitions fired via surface-to-surface rockets, using a multiple launch rocket system (MLRS). […] Even though Brazil, Yemen, Saudi Arabia and the other members of the Saudi Arabia-led coalition participating in the conflict in Yemen are not parties to the Convention, under the rules of customary international humanitarian law they must not use inherently indiscriminate weapons, which invariably pose a threat to civilians." ^[+]