Election observers reported serious electoral irregularities and restrictions on political freedom.

He said the election process was marked by "serious irregularities."

However, an investigation into the primary election revealed serious irregularities.

International observers from 40 countries reported no serious irregularities in an election which was seen as the most free and fair since 1970.

However the opposition and election monitors said that there were serious irregularities with the referendum.

So far, he said, no serious irregularities have been discovered.

I have heard of some serious irregularities, but that isn't a novelty.

There were no immediate reports of any serious irregularities.

The results of the audit did not identify any serious irregularities.

You asked how this is to be regarded in comparison with last year, when we identified 4 % of serious irregularities.