Sudan’s army has brought in reinforcements as it seeks to defeat the rival paramilitary Rapid Support Forces in Khartoum. The move has raised fears of intensified fighting in Sudan’s capital after a ceasefire agreement expired, leaving the two sides battling for control of a contested military base and other sites. Elsewhere, heavy fighting continues in Sudan’s western Darfur region, where at least 40 people were killed and dozens more wounded over the weekend. Witnesses say gangs of armed fighters have carried out widespread looting and terrorized civilians, worsening the humanitarian crisis.