South Korea said Tuesday that North Korea's possible long-range rocket would not be helpful to the communist country, calling it a violation of U.N. resolutions.

Presidential spokesman Min Kyung-wook made the comment a day after North Korea vowed to launch a series of satellites as part of its space development program.

North Korea did not provide any specific time frame for the satellite launches, but there is speculation that it may launch a long-range rocket in October to mark the 70th anniversary of the founding of the Workers' Party.

North Korea claims that its satellite launches are a peaceful project for science and economic development, calling it a sovereign right.

Still, South Korea and the United States view the satellite launches as a cover for testing the North's ballistic missile technology, which is banned under a U.N. resolution.

The North's announcement falls just two weeks after South Korean President Park Geun-hye and her Chinese counterpart, Xi Jinping, warned North Korea against conducting a missile or nuclear test.

The two leaders voiced opposition to any act that could escalate tensions. (Yonhap)