Saudi-led air strikes on Yemen capital resume, airport shut - residents

Smoke rises from a snack food factory after a Saudi-led air strike hit it in Sanaa, Yemen, August 9, 2016. REUTERS/Khaled Abdullah

ADEN (Reuters) - At least 13 people were killed on Tuesday in the first air strikes by a Saudi-led coalition on the Yemeni capital in five months, residents said, as the head of the U.N. expressed concern about the escalation in the fighting.

Fighting has intensified since U.N.-sponsored peace talks between the Houthis, backed by forces loyal to former President Ali Abdullah Saleh, and the internationally recognised government ended on Saturday without an agreement.