Sudan attacked South Sudan with airstrikes and ground troops on April 23, days after South Sudanese forces retreated from a Heglig, a disputed oil-rich region South Sudan had captured from Sudan's military earlier in the month. The attacks went far beyond Heglig, as Sudan's forces bombed as far as the South Sudanese town of Bentiu, a regional capital. The fighting has stirred fears of all-out war between the Sudan and South Sudan, which became an independent nation only last year. A policeman walked past the smouldering remains of a market in Rubkona near Bentiu in South Sudan on April 23. Michael Onyiego / AP Photo Sudanese President Omar al-Bashir addressed celebrating troops during his visit to Heglig on April 23. Al-Bashir said there will be no more talks with South Sudan, as fresh Sudanese air raids dashed hopes for an end to weeks of fighting. Ashraf Shazly, AFP / Getty Images A Sudanese soldier stood atop a destroyed tank left behind by Southern forces when they withdrew from Heglig. Ashraf Shazly, AFP / Getty Images The body of a South Sudanese soldier in Heglig on April 23. Ashraf Shazly, AFP / Getty Images Sudanese soldiers in Heglig posed next to seized mortar rounds from the Sudanese People's Liberation Army (SPLA), South Sudan's fighting force. Ashraf Shazly, AFP / Getty Images A wounded SPLA soldier rested outside a hospital in Rubkona, South Sudan. Adriane Ohanesian, AFP / Getty Images An oil field that caught fire in Heglig on April 22. Abd Raouf / AP Photo SPLA vehicles on the road from Bentiu to Heglig. Adriane Ohanesian, AFP / Getty Images A wounded SPLA soldier resting outside a hospital in Rubkona, South Sudan. Adriane Ohanesian, AFP / Getty Images Sudanese workers inspecting a damaged depot at a processing facility in Heglig on April 23, after the South's forces withdrew. Ashraf Shazly, AFP / Getty Images The body of a Sudan Armed Forces (SAF) soldier next to a leaking oil facility in Heglig. Adriane Ohanesian, AFP / Getty Images