COLOMBO: Sri Lanka’s main opposition demanded Tuesday the country’s anti-graft chief be sacked for summoning former president Mahinda Rajapaksa to answer bribery allegations amid renewed uproar in Parliament.

Opposition lawmaker Bandula Gunawardane told Parliament the director general of the Commission to Investigate Allegations of Bribery or Corruption, Dilrukshi Wickramasinghe, should be dismissed for her “arbitrary action.”

Wickramasinghe has summoned Rajapaksa to appear on Friday following a complaint that he paid a bribe of more than 600 million rupees ($4.6 million) to a lawmaker from the then-opposition to defect ahead of the presidential election in January.

“Today, 113 lawmakers signed a petition asking the speaker to take action to remove Dilrukshi Wickramasinghe,” said Gunawardane, who is from Rajapaksa’s faction.

New President Maithripala Sirisena has launched a series of corruption investigations against Rajapaksa’s inner circle since ousting him at the election after a decade in power.

Rajapaksa’s opposition disrupted Parliament for a second day over the summons, holding up passage of Sirisena’s promised reforms to roll back the president’s powers, which were strengthened during the former strongman’s rule.

Hundreds of Rajapaksa supporters blocked a main road to parliament, demanding investigations against him be dropped.

Speaker Chamal Rajapaksa told Parliament that investigators would now visit the former president, rather than insisting on him appearing before the commission on Friday to answer questions. After calling snap elections, Rajapaksa was defeated by his former ally, largely due to voter anger over corruption and cronyism claims.