Dozens of Arab special forces soldiers have arrived in the Yemeni port city of Aden, according to the Southern Popular Resistance.<br /><br /> It claims they are deployed alongside local fighters, against Houthi rebels. They are said to be engaged in fighting around Aden airport. <br /><br /> The Saudi-led coalition denies that it has started a ground offensive, but has refused to comment on the possibility of special forces being involved.<br /><br /> Meanwhile, Human Rights Watch (HRW) claims the coalition may have used cluster bombs, which are banned by most countries. The group says evidence suggests they were supplied by the US.<br /><br /> The coalition includes eight other Arab states and is receiving logistical support from America, Britain and France.<br /><br /> It has been bombing Yemen’s Houthi militia and allied army units for a month, in an effort to restore the government. <br /><br /> “Credible evidence indicates that the Saudi-led coalition used banned cluster munitions supplied by the United States in air strikes against Houth
