Fighting resumed in Syria between regime troops and rebels in different parts of the country, especially in the south, where opposition fighters are battling to seize control of the border crossing with Jordan.
Opposition activists told Al Jazeera on Wednesday that the fighters were now “in control of most of Ramtha post” in the southern province of Deraa.
The clashes came as the UN inspectors returned to Syria to investigate the use of chemical weapons.
Convoys of inspectors arrived at a Damascus hotel on Wednesday, a week after they confirmed that sarin gas was used in an attack August 21 in the suburbs of the Syrian capital.
The US and its allies accuse President Bashar al-Assad’s government of carrying out the attack, a claim the government had repeatedly denied.
The team of investigators is expected to examine the alleged use of chemical weapons up to 14 times in Syria’s 30-month conflict.
On the ground, meanwhile, fierce fighting erupted in the strategic northern town of Areeha, forcing locals to seek cover in nearby caves.
Rebels are battling for control of the town, which sits along a key supply route for Assad’s forces.
In the northern province of Aleppo, rebels said they seized control of the Madajen district, another key supply route for the regime that is located near the airport road.
Activists in the northeastern province of Raqqa reported the death of five people in air raids by government fighter jets on the city of Tabqa.
Fighter jets also dropped shells near a bakery rebel-held Raqqa city, activists reported, causing several casualties and fire outbreak in the area.