An al Qaeda-linked group in Yemen is claiming responsibility for a suicide bombing that killed at least four government soldiers.<br/> <br />On Tuesday, a suicide bomber detonated a vehicle laden with explosives near a checkpoint in the south of the country.<br/> <br />The bombing is the latest in a spate of attacks by Islamist militants in Yemen. They have escalated their operations in Yemen's south after Yemen's new government has vowed to fight al Qaeda's regional wing.<br/> <br />The group said the attack was in revenge for recent air strikes which it blames on U.S. drones. Washington has repeatedly used drones to target militants in Yemen.<br/> <br />Tribal sources say more than 60 militants have been killed over the past week in air strikes attributed to the United States and Yemen.<br/> <br />Deborah Lutterbeck, Reuters.
