KABUL, Dec. 6 (Xinhua) — Afghanistan’s Electoral Complaints Commission (ECC) has invalidated all votes cast during the Oct. 20 parliamentary elections in Kabul constituency, an ECC official said Thursday.

Alireza Rohani, spokesman and secretary of ECC, told reporters at a press conference here that the widespread fraud and vote rigging have damaged the transparency and credibility of polls in Kabul and led to the invalidation of all votes cast in the constituency.

About 2,767 complaints were registered in Kabul after the polls, according to Rohani.

The long-delayed elections for Wolesi Jirga or lower house of the Afghan parliament, were held on Oct. 20, with more than 2,500 candidates vying for the chamber’s 249 seats.

The Independent Election Commission (IEC) has announced the preliminary results of many of the 33 constituencies so far.

IEC officials told local media that IEC will announce its stance on the decision soon.