Prosecutors on Monday indicted two opposition lawmakers, who are close to ousted President Park Geun-hye, on bribery charges.

Seoul Central District Prosecutors' Office said Reps. Choi Kyung-hwan and Lee Woo-hyun of the Liberty Korea Party will stand trial for accepting kickbacks from the National Intelligence Service, and a local government official and businessmen, in return for favors.

Choi, a former finance minister, has been charged with bribery, and Lee with bribery and violation of the political fund law, the court said. Both were arrested early this month.

Choi, 63, is suspected of taking 100 million won ($93,500) from the spy agency in 2014 in exchange for exerting influence to keep the budget intact for the NIS' off-books fund, known as the "special activities fund." Choi was deputy prime minister for economic affairs and finance minister at the time.

The opposition bigwig is also accused of asking the NIS to increase the amount of funds the agency illegally provided to the presidential office Cheong Wa Dae the same year, when the former president Park was in office.