Jeanine Hennis-Plasschaert, the Special Representative of the UN Secretary-General for Iraq and Head of the United Nations Assistance Mission for Iraq (UNAMI), met with the Secretary-General of the Asa'ib Ahl al-Haq movement, Qais Al-Khazali, on Tuesday.
Khazali has its own armed group, which is part of the Iraqi Popular Mobilization Forces (PMF). He is seen as closely aligned with Iran and was involved in past attacks on US troops in Iraq.
Hennis-Plasschaert previously met him last November to discuss the results of October's parliamentary elections.
"They discussed the current political situation in the country, including the formation of the new government," UNAMI tweeted on Wednesday.