The statement said the Lee Myung Bak group let the security forces conduct search operation against the opposition party and has intensified the suppression of the opposition camp.

The statement called upon opposition parties to form anti-U.S., anti-Lee Myung Bak front and struggle against the authorities' suppression by united efforts.

The South Headquarters will take the lead in further strengthening solidarity of opposition camp while supporting the forces which give priority to the people's will in the future, the statement stressed.

It called upon all the people to abolish the dictatorial forces with the might of the great alliance against conservatives to prevent Lee Myung Bak and the "Saenuri Party" led by Park Geun Hye, already driven to the tight corner with corruption and irregularities, from raising their heads again.