The US is set to take the Syrian Islamist group Hayat Tahrir al-Sham (HTS) off its list of foreign terrorist organisations on Tuesday, according to a state department memo.

The group led a rebel offensive in December that toppled the Assad regime, which had ruled Syria for 54 years. Its leader Ahmed al-Sharaa is now the country's interim president.

HTS, also known as al-Nusra Front, was previously al-Qaeda's affiliate in Syria until al-Sharaa severed ties in 2016.

In recent months, Western countries have sought to reset relations with Syria - which has faced heavy sanctions aimed at the old regime.

In late June, Trump signed an executive order to formally end US sanctions against the country, with the White House saying the move was intended to support its "path to stability and peace".

It added it would monitor the new Syrian government's actions including "taking concrete steps toward normalising ties with Israel" as well as "addressing foreign terrorists" and "banning Palestinian terrorist groups".

Syrian Foreign Minister Asaad al-Shibani said the move would "lift the obstacle" to economic recovery and open the country to the international community.

On Friday, Syria said it was willing to cooperate with the US to reimplement a 1974 disengagement agreement with Israel.

Over the weekend, UK Foreign Secretary David Lammy visited Syria - the first government minister to do so in 14 years.

He met with al-Sharaa and announced an additional £94.5m support package - aimed at supporting longer-term recovery and countries helping Syrian refugees.

The UK earlier lifted sanctions on Syria's defence and interior ministries.

Ninety percent of Syria's population were left under the poverty line when the Assad regime was ousted after 13 years of devastating civil war.

Al-Sharaa has promised a new Syria, but there are concerns within the country about how the new government is operating - with some suspicious of his radical past.

Only one female government minister has been appointed to date - and al-Sharaa has made almost every other appointment directly.

There have also been multiple violent attacks against minority groups in recent months.

In March, hundreds of civilians from the minority Alawite sect were killed during clashes between the new security forces and Assad-loyalists.

In April there were deadly clashes between Islamist armed factions, security forces and fighters from the Druze religious minority. And in June at least 25 people were killed in a suicide attack on a church in Damascus.