Syria's state news agency is reporting that rebels have fired rockets "containing chemical substances" in an attack in the northern province of Aleppo which it said killed 15 people.
The SANA news agency has repeatedly referred to rebel fighters as "terrorists". There has been no confirmation from rebel sources so far.
More top news
Theresa May and Jeremy Corbyn attempted to reshape the election debate as they faced public scrutiny on TV before a Jeremy Paxman grilling.
The new legislation will see the passports of convicted paedophiles cancelled in a bid to protect vulnerable children in south-east Asia.
The 90 competitors chosen to represent Britain in Toronto include more than 60% debutants.