South Sudan accuses Sudan of new attack - Reuters

The South Sudanese army (SPLA) said the town of Teshwin in the border area had come under attack late on Monday and that fighting was continuing on Tuesday. Sudan's armed forces spokesman Al-Sawarmi Khalid Saad could not immediately be reached for comment on his mobile phone.

South Sudan, which seceded in July, has been locked in a bitter dispute with Khartoum over oil payments and other issues, and clashes in the ill-defined border region last month raised concerns they might escalate into full-blown war.

"They launched a new attack, and occupied southern territory until the SPLA repulsed them," said Philip Aguer, a spokesman for the South's forces, Sudan People's Liberation Army. "Fighting continued today and is still ongoing."

He said the Sudanese ground forces had started their attack from the disputed area of Heglig, where Sudan controls an oil field that accounts for roughly half of its 115,000 barrel a day output.

South Sudan's army briefly occupied a portion of the Heglig area last month before pulling out.

The two countries are at odds over how much the landlocked South should pay to export its oil through Sudan.

South Sudan took three quarters of what was the united country's oilput when it seceded. It shut down production in January after Khartoum started taking some oil for what it calls unpaid transit fees.

Sudan's President Omar Hassan al-Bashir was meant to meet his counterpart Salva Kiir in Juba last week to defuse tensions, but he called off the summit due to the border violence.

Sudan's Foreign Minister Ali Ahmed Karti said on Tuesday Khartoum wanted the summit but needed more time to prepare.

"We don't want the summit to fail. If the summit fails nobody else will solve the problems," he said after meeting his Czech counterpart in Prague.

"We are committed to the summit, but let us delay till we are able to solve or at least discuss the problems in (a) way that the summit will be successful," he said.

Among other unresolved issues, the two sides need to mark their border and end accusations of supporting rebels in the other's territory. (Reporting by Ulf Laessing; Additional reporting by Jana Mlcochova in Prague; Editing by Alessandra Rizzo)