Hundreds of people have marched in Benghazi calling for a shake-up of Libya's new leadership while nascent political groups have challenged the country's interim rulers in a memorandum, saying their governance plan does not meet the people's demands.

The Benghazi residents marched from a charred compound of former leader Muammar Gaddafi, criticising what they called "climbers" and "opportunists" in the new leadership. "Some of the executive committee are blood-suckers and thieves and we keep seeing them on TV. They should be in court," said a protester, referring to the country's cabinet, which has been officially dissolved but in practice still exists.

The memorandum, signed by 56 political organisations, mostly from eastern parts of the country, highlights the political divisions emerging over Libya's future just two weeks after Gaddafi's ouster. The memorandum says the ruling National Transitional Council (NTC) plan contains contradictions and should not be used as the road map for governance in a post-Gaddafi era.

Under the existing plan, the NTC would resign and leave the country to two more consecutive interim governments for the transitional period set to last for 18 months from Libya's official liberation from Gaddafi's rule, Reuters reported.