Palestinian movements – including Fatah and Hamas, which remain at rift for a decade and a half – will join talks in the coming days to bring about reconciliation and unity, officials from the two factions told the Reuters news agency.

Representatives of Fatah and Hamas met in China in April to discuss a possible reconciliation to end their 17-year standoff; tensions have escalated since the Gaza war broke out.

Palestinian Authority President Mahmoud Abbas, who leads Fatah, has criticized the Palestinian Islamist movement Hamas for the war. Hamas has accused the Palestinian Authority president of siding with Israel.

The two main Palestinian factions have been at odds since Hamas won parliamentary elections in 2006 and seized control of the Gaza Strip in 2007 after a brief armed conflict in which it drove out Western-backed forces pledging allegiance to Abbas.

Since then efforts by Arab countries, led by Egypt, have failed to end power-sharing wrangling between Hamas, which rules the Gaza Strip, and Abbas’s Fatah, which forms the backbone of the Palestinian Authority.