The Palestinian Islamic Hamas movement on Monday accused Palestinian President Mahmoud Abbas of bypassing initial agreements reached in Egyptian-brokered inter-Palestinian dialogue.

Hamas made the accusation after Abbas, also leader of the Fatah party, called for convening the Palestinian Liberation Organization's (PLO) legislative body to fill vacant position at the organization's executive committee, the highest leading body of the PLO.

"Abbas' call for the convention of the Palestinian National Council (PNC) is illegal and unlawful and Hamas rejects any aftermaths of that call," said Sami Abu Zuhri, a Hamas spokesman in Gaza.

"Abbas sidesteps Hamas-Fatah agreement that the elections of the PNC and the PLO executive committee should be held in parallel with presidential and parliamentary elections," Abu Zuhri added.

The 18-member executive committee represents the PLO factions and is considered the sole representative of the Palestinian people in their territories and in diaspora.

Since the last convention of the PNC in 1998 in Gaza, several members of the PLO executive committee had died, challenging the legality of the committee due to short of quorum.

Hamas, which routed pro-Abbas forces and seized Gaza in 2007, and the less-influential Islamic Jihad, are not represented under the PLO since the PLO calls for peaceful settlement with Israel.

Since February, Egypt has been sponsoring a national dialogue between Hamas and Fatah to settle their political differences.