At least eight people were killed on Wednesday when the Syrian army launched missiles that struck a shelter for displaced families in the country’s northwest, witnesses and residents said. Five children were among those killed in the strike on a disused school in the town of Sarmin in Idlib province, two medics said, adding over 16 people were injured. The school building was being used by families fleeing a Russian-backed bombing campaign in Idlib, the last opposition bastion in the northwest.