New Delhi, July 19 -- Fighting in Sudan's Kordofan region that has killed hundreds and ongoing violence in Darfur - the epicenters of the country's conflict - have worsened Sudan's humanitarian crisis, with aid workers warning of limited access to assistance.

The United Nations said more than 450 civilians, including at least 35 children, were killed during the weekend of July 12 in attacks in villages surrounding the town of Bara in North Kordofan province.

"The suffering in Kordofan deepens with each passing day," Mercy Corps Country Director for Sudan,, Kadry Furany, said in a statement shared with The Associated Press. "Communities are trapped along active and fast changing front lines, unable to flee, unable to access basic needs o...