Texas shooting timeline: the 911 calls children made during massacre

At least two girls hiding in their classrooms at Robb elementary school in Texas dialled 911 during the shooting, law enforcement officials have said

The first call came from a little girl who called multiple times on Tuesday. At 12.03pm, she identified herself and told authorities what room the shooter was in, said Steven McCraw, the director of the Texas Department of Public Safety.

Here is a 911 emergency call timeline McCraw outlined at a news conference: