the headlines at four: labour leaderjeremy corbyn has said he would sanction operations in syria only if they had the un's approval. voices from inside the devastation in syria — the bbc hears from a mother and daughter who survived the suspected chemical attack in eastern ghouta a week ago we went back down to the basement and we saw how they were bringing the martyrs. instead of breathing the martyrs. instead of breathing the air, we breathed the smell of blood. hundreds of australian firefghters are tackling a large bushfire threatening homes in the suburbs of sydney. the chief executive of the world's largest advertising agency, martin sorrell, is stepping down. also coming up: jubilation at the commonwealth games. england beat australia in the netball, to secure the greatest result in their history and win their first commonwealth gold medal. and at 16:30, newsbeat speaks to people who lose their hair at a young age. good afternoon and