KHARTOUM, Nov. 7 (Xinhua) -- Sudan's ruling National Congress Party (NCP) Saturday reiterated its commitment to the Comprehensive Peace Agreement (CPA) between north and south the country, as tension is mounting between itself and its major partner in the government, the Sudan People's Liberation Movement (SPLM).

"We are concerned about Sudan and we will not react to the SPLM stances. We will rather try all the means to contain the existing tension," said the NCP Deputy Chairman, Nafie Ali Nafie at a press conference in Khartoum.

Nafie accused some opposition political forces of working to undermine the political atmosphere, and crippling the process of democratic transformation and the elections, set for April 2010.

"The SPLM does not bear freedom and atmosphere of elections despite claims of its supporters," he said, adding "southern Sudan is currently governed by the SPLM intelligence and not by a civil government, that is why the SPLM seeks to prevent any electoral activity in the south and works with the opposition forces to cripple the electoral process in the north."

Nafie condemned what he called "organized harassment" by the SPLM, saying "there is harassment, threats and torture against the NCP cadres in southern Sudan."

He further stressed that the NCP would continue its political activity in southern Sudan.

The State Minister for Information and NCP member, Kamal Obaid, for his part, said the SPLM does not constitute a strategic partner to achieve peace in Sudan because of its practices which are against the simplest rules of political partnership.

"It is a separatist movement that uses racist and separatist expressions and there are signs that confirm its separatist line," he said, adding "the SPLM, with its political and security behavior, cannot be a strategic partner to achieve peace in Sudan."

Differences are mounting between the NCP and the SPLM, the signatories to the CPA, which ended a two-decade war between north and south Sudan in January 2005.

The SPLM is boycotting the sittings of the Sudanese National Assembly (parliament) and the Council of Ministers in protest against what it says delay in passing some bills relating to public freedom, including the bill on security and intelligence service and the bill on the referendum on self-determination for southern Sudan.