The Jordanian army began delivering humanitarian aid to thousands of displaced Syrians who took shelter near its border.
Russian jets struck an opposition held town in southwest Syria on Sunday, opposition sources said.
Syrian government helicopters dropped barrel bombs on opposition areas of the southwest on Friday for the first time in a year.
Clashes were renewed between militants of fighting factions and regime forces in Syria's Jober axis, with no casualties reported.
Heavy air strikes hit the Syrian city of Deraa on Tuesday .