Al jazeera's David Poort, covering the elections from Tripoli tonight, also heard Ian Martin, the UN chief  in Libya, who commented on some of the sporadic violence around the country today:

It is obviously wrong that there is a resort to violence. It is a crime, a serious crime that an employee of the election commission lost his life. A young man lost his life last night. I think it will only damage the minority who are carrying such actions.

"One should distinguish that willingness to disrupt the process from the much wider feeling in the east that it is being marginalised and that in the future constitution-making process they are determined to have a full and equal share.

What we are seeing is that a great majority of voters is very angry that a minority issue prevents them from exercising a right while they were in the forefront of the struggle to have that right.

It will be up to the election commission to decide whether and when there could be re-runs in places where the vote hasn’t been possible. But I can see already that the problems are in a small enough proportion of the polling centres, that it is not going undermine the overall credibility of the election.