Syrian state media said on Monday that US-led coalition aircraft had bombed a Syrian army position near the Iraqi border, causing deaths and injuries, but the US military denied it was responsible.
At least 12 civilians -- members of the same family -- have been killed in US-led coalition raids on the Islamic State group in northeastern Syria, a monitor said Saturday.
Islamic State, however, continues to carry out bombings, assassinations and ambushes in different areas of Iraq, and remains active in neighbouring Syria.
Two personnel with the US-led coalition battling Islamic State were killed and five were wounded by an improvised explosive device in Syria, the coalition said on Friday.
The Syrian Democratic Forces said the handover would not be immediate, with SDF fighters still combing the city of Raqqa.
The Joint Operations Command said Iraqi forces held all 29 districts of the city and were pursuing final mopping up operations.
Amnesty International said on Tuesday tactics used by Iraqi forces and their US-led coalition allies in the battle for Mosul violated international humanitarian law and might amount to war crimes.
Iraqi Prime Minister Haider al-Abadi was poised to declare victory over Islamic State in Mosul on Monday as only a few dozen militants put up resistance in the city where their leader declared a caliphate three years ago.
Key members of the US-led coalition fighting the Islamic State group in Iraq and Syria meet in Copenhagen on Tuesday to assess the campaign's next steps as the jihadists' "caliphate" collapses.