Nearly 30 air strikes hit rebel-held areas of Syria‘s northern city of Aleppo on Saturday, killing more people in a ninth straight day of bombardments by warring sides, and a temporary “calm” declared by Syrian military took hold around Damascus and in the northwest. The violence in Aleppo, which has borne the brunt of an escalation in fighting that has all but destroyed a ceasefire deal brokered in February by Washington and Moscow, has killed nearly 250 people since April 22, a monitoring group said. It has also contributed to the breakup of peace talks in Geneva, which the main opposition walked out of last week.