The Biden administration has urged the rebel group that led the ouster of Syrian President Bashar al-Assad not to assume automatic leadership of the country but instead run an inclusive process to form a transitional government, according to two U.S. officials and a congressional aide briefed on the first U.S. contacts with the group.

The communications with Hayat Tahrir al-Sham (HTS), a group formerly allied with al Qaeda and designated a terrorist organization by the United States, are being conducted in coordination with Washington's Middle East allies, including Turkey.

The administration is also in touch with President-elect Donald Trump's team about the matter, one of the officials said.

The discussions, which have taken place over the last several days, are part of a larger effort by Washington to coordinate with various groups inside Syria as it tries to navigate the chaotic aftermath of the sudden collapse of the Assad regime on Sunday.

The official, speaking on condition of anonymity, said the U.S. has sent messages to the group to help guide early efforts to establish a formal governing structure for the country.