KHARTOUM/BENTIU - Sudan and newly-independent South Sudan accused each other of launching fresh attacks on their territories on Sunday as neither side showed any sign of bowing to global pressure to return to the negotiating table.

South Sudan said Sudanese troops attacked settlements about 10km on its side of the border and carried out air raids in a range of areas including its oil-producing Unity state.

"We are building up troops because we think that the Sudanese army is also building up," Mac Paul, deputy director of South Sudan's military intelligence, told reporters in the southern border town of Bentiu.

In the Sudanese capital Khartoum, hundreds of Muslims stormed a Christian church complex used by southerners in Khartoum on Saturday, witnesses said, raising fears that the border fighting was also stoking ethnic tensions in the city.

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