aden least six people kill tuesday suicide car bomb rip base use local security force yemen southern port city aden residents say attack claim islamic state dozens people include civilians wound attack occur outside camp use local security force organize saudi-led coalition fight yemen houthi rebel islamist militants exploit civil war begin 92015 try expand influence gain foothold impoverish country locate southern arabian peninsula near world top oil exporter saudi arabia witness describe huge explosion shake al-mansoura district northern aden destroy least one build shatter windows others plume smoke rise area ambulances race scene evacuate wound picture circulate social media show several young men military uniform carry away residents say two suicide bombers carry attack islamic state claim responsibility attack say one bomber involve identify abu hajar al-adani group say adani target operations room apostate security belt destroy kill wound inside picture post social media show young men military uniform carry away bandage security belt set unite arab emirates key member saudi-led coalition fight iran-aligned houthis since advance aden 2015 force president abd-rabbu mansour hadi flee saudi arabia civil war iran-aligned houthis internationally recognize hadi government kill 10,000 people displace two million war drag sign end soon tuesday attack second kind aden month nov. car bomber blow security checkpoint kill 15 people wound least 20. islamic state also claim responsibility assault provide evidence involve nl5n1nb0ef least six kill yemen suicide bomb claim islamic state