Main opposition People Power Party(PPP) Rep. Park Duk-hyum announced that he is leaving the party amid corruption allegations surrounding him and his family. 

The conservative lawmaker on Wednesday revealed his decision at a news conference, saying he should no longer be a burden on the party. 

Park has been accused of winning contracts for his family's company from agencies subject to audit by the parliamentary land committee, of which he was a member. 

A civic group has filed a complaint with the prosecution against Park, saying the company, majority-owned by the three-term lawmaker and his family, won construction and other orders totaling some 100 billion won over the past five years from a number of public agencies. 

Most of the agencies were affiliated with the Ministry of Land, Infrastructure and Transport and the Seoul Metropolitan Government.

Park claims there was no conflict of interest since all of the orders were won through competitive open bids.