Ongoing corrections to preliminary voters lists in East Timor have included an additional 18,000 names and will bring the total electorate for August 30 constituent assembly elections to more than 400,000, electoral commission official Carlos Valenzuela said Monday.

He told reporters in Dili that more than 233,000 East Timorese had consulted the preliminary lists since their posting for verification and correction.

The Independent Electoral Commission had earlier acknowledged "systematic" errors in preparing the preliminary lists, based on a recent territory-wide civil registration campaign.

Valenzuela said that 250 voting centers, with about 790 ballot boxes, would be used in the upcoming election, about 25 percent more than during East Timor's August 1999 independence plebiscite.