The Ukrainian congress chairman Vladimir Litvin urged on Saturday evening in Kiev his colleagues to reach agreement on organizing another round of balloting for presidential elections.

Litvin made the call when asked by local media to comment on the resolution passed earlier Saturday afternoon by the congress, which announced that the second round of the fourth Ukrainian presidential election is of no legal effect.

"The resolution is a political assessment on the current situation by the congress," said Litvin.

He stressed that the legislation should also make more decisions to enhance the "political assessment".

On Saturday, the Ukrainian congress convened a special session to discuss how to resolve the current election crisis. Among the attending 429 congressmen, 255 voted for the resolution.

However, the congressmen failed to pass a decision to organize another round of election.

Litvin said the congressmen should immediately consider when to organize another round of balloting.

"It is urgent to make decisions on re-balloting and the issue can not be delayed," he was quoted by local media, saying that the law makers should make decision as soon as possible, so as to set track for the next action.

Litvin also said the country should consider political reform in face of this comprehensive political crisis.

Organizing another round of balloting had been put forward by opposition leader Viktor Yushchenko but it was rejected by his rival Ukrainian Prime Minister Viktor Yanukovich.

The resolution passed by the congress has no legal effect.