SEOUL, Oct. 17 (Yonhap) -- Opposition parties on Wednesday ramped up their criticism against the Seoul subway operator suspected of giving unfair job favors to relatives of its employees.

The state-run Seoul Metro has transferred 1,285 contract workers to permanent employment status as of March, and among them, 108 people were relatives of the operator's existing and former employees, according to Rep. You Min-bong of the main opposition Liberty Korea Party (LKP).

The incident is likely to spur conservative parties into increasing attacks on the government's income-driven growth and job policy during the ongoing parliamentary audit session.

The LKP and the minor opposition Bareunmirae Party (BP) called the controversy a "hiring corruption" that they said deprived jobseekers of chances for work.

"We will strongly demand a parliamentary probe into the scandal so as to let people become well-aware of this employment practice by people close to the Moon Jae-in government," Kim Sung-tae, the LKP's floor leader, said at a meeting with party officials.

The BP denounced the operator under the Seoul Metropolitan Government, calling on Seoul Mayor Park Won-soon to take responsibility for the scandal.

"We've found that there was serious employment succession among unionized workers at the firm," Rep. Ha Tae-keung of the BP said. "Mayor Park should conduct an inspection into the practice to reveal the truth."

Source: Yonhap News Agency