Sudan: first aid convoy reaches besieged Khartoum area since start of civil war - Sudan civil war: 23 killed in air strike on Khartoum market - Sudan army hits paramilitary positions to regain Khartoum footing - Sudan: Over 20 killed in army strike on Khartoum -- rescuers - Sudan army launches major bid to regain the capital Khartoum from paramilitary forces - Sudan military offensive sparks new fighting in Khartoum as cholera outbreak worsens - Sudan: Fierce clashes in Khartoum as army launches offensive