AT least 22 people were killed and scores injured in an air strike by Sudan's army on western Omdurman, the Khartoum state health ministry said, as the war between the country's military factions entered its 12th week. While the paramilitary Rapid Support Forces (RSF) quickly dominated the capital Khartoum and its sister cities Omdurman and Bahri after fighting broke out on April 15, the army launched air and artillery strikes. The fighting, for which no mediation efforts have succeeded thus far, threatens to drag the country into a wider civil war, drawing in other internal and external actors in the…