Rebels attack Sudan army base

Rebels with tanks attacked an army base in Sudan's top oil-producing state of South Kordofan on Sunday, and both sides claimed victory.
The Sudanese Revolutionary Front (SRF), an umbrella of insurgent groups which aims to topple President Omar Hassan al-Bashir, has stepped up attacks in the past month, trying to force the army to fight on fronts hundreds of miles apart to drain stretched state resources.
Sudan has accused neighbour South Sudan of backing rebels in the South Kordofan and Blue Nile border states. Juba denies this, but diplomats say the allegation is credible.
The violence has strained ties between the nations, which came close to all-out war in border clashes last year and have struggled to put an end to tensions that have hampered their economies.