Sales figures for titles published by Archant Norfolk and Suffolk have been delayed after it was revealed last week that some of its circulation figures had been falsified.

Figures for 13 titles owned by the publisher in the two counties have not been published as expected today, after it emerged last week that sales for newspapers in Norfolk had been overstated.

The discovery by the company led to the dismissal of Archant Anglia circulation director Don Williamson, who was due to retire this week.

Last week, Archant said its ABC figures for today were not expected to be affected by the revelation but the company has now said its auditors were unable to complete their procedures on time.

A statement from the publisher said: “Our auditors have been unable to complete their internal procedures for both the Norfolk and Suffolk paid-for circulations in time for the ABC deadline.

“We will publish the new audited numbers shortly, once the auditors have finished their internal procedures.”

Titles which have not published their figures today have included regional dailies the Eastern Daily Press, Norwich Evening News, Ipswich Star and the East Anglian Daily Times.

These titles were the only regional dailies to record sales increases when the last ABC figures were published in February.

Archant has admitted figures for the Norfolk titles from the last half of 2011 could be wrong and it is now reviewing these.

Weekly titles whose sales figures have not been published yet include the Great Yarmouth Mercury, North Norfolk News, the Sudbury Mercury and the Lowestoft Journal.