US President Donald Trump will host Iraqi Prime Minister Haider al-Abadi in Washington later this month, the White House said Tuesday, as the two countries pursue a joint offensive against the Islamic State (IS) militants in Mosul.

Press secretary Sean Spicer said Chancellor Angela Merkel of Germany will visit next week and "the following week, the president will welcome the prime minister of Iraq."

Tensions between Washington and Baghdad have built since Trump took office and introduced a ban on Iraqis visiting the United States -- before the federal courts suspended it. Iraqis were exempt from his new travel ban unveiled Monday.