The UN's World Food Programme (WFP) has resumed aid deliveries in parts of Syria's Raqqa province for the first time in three years using a newly opened land route, the UN said on Wednesday.
US advisers in Raqqa
US military advisers are operating inside the city of Raqqa, a US official said on Wednesday.
The troops, many of them special operations forces, are working in an "advise, assist and accompany" role to support local fighters from the SDF as they battle Daesh, said Colonel Ryan Dillon, a military spokesman.
The troops are not in a direct combat role but are calling in air strikes and are working closer to the fight than US forces supporting the Iraqi military in Mosul did.
"They are much more exposed to enemy contact than those in Iraq," Dillon said.
He said the numbers of US forces in Raqqa were "not hundreds" and that they had been working closely with the SDF.
Regime blamed for violating ceasefire
The Syrian opposition group, High Negotiations Committee (HNC) said that the regime has broken the ceasefire in southern Syria more than 15 times in nearly 24 hours by Wednesday.
Russia's Foreign Minister Sergei Lavrov, however, said on Wednesday that the ceasefire in southern Syria is being "globally respected."
The zone where the ceasefire was declared had seen "a rapid fall in the level of violence," Lavrov said.
The truce, which was brokered by Russia, the US and Jordan, has been in force since Sunday in the provinces of Daraa, Quneitra and Sweida.
Meanwhile, the head of the Syrian opposition delegation at peace talks in Geneva accused the Assad regime of refusing to engage in political discussions.
Nasr al-Hariri of the HNC challenged the UN Security Council to "uphold its responsibilities" and maintain pressure on Assad to honour resolutions that the council has passed.
Refugees return as Hezbollah rebels strike deal
Around 300 refugees returned to their hometown in Syria on Wednesday from northeast Lebanon, where tensions have been high following army raids and suicide attacks on camps in the area.
The refugees returned under a deal negotiated by Syrian rebels in the camps and Lebanese militant group Hezbollah, which is fighting in Syria on behalf of the Assad regime.
"They included armed fighters and civilians, and left in two waves from camps around Arsal to the town of Assal al-Ward in Syria," a security source said.
Lebanon is home to more than a million refugees fleeing the six-year conflict in neighbouring Syria.
Idlib suicide bombing targets rebels
A suicide bomber rammed a car laden with explosives into a gathering of rebels near the northwestern Syrian city of Idlib on Wednesday, killing and injuring scores, rebel sources said.
They said the blast ripped a textile factory where members of Hayat Tahrir al Sham, an alliance of rebel groups whose backbone is the former Al Qaeda affiliate Al Nusra Front, had been using as their quarters. At least 12 were killed, one rebel source said.
The rebel alliance has been waging in the last few days a major sweep to round up Daesh sleeper cells in Idlib province.
They say they have arrested at least 100 people, including who the group says are senior operatives blamed for a string of recent assassination and blasts in the province.
The Britain-based war monitor Syrian Observatory for Human Rights, however, said that over 26 Hayat Tahrir al-Sham members were killed in the "booby-trapped vehicle explosion."