A timeline of how the shooting unfolded

Just after 10:00 local time (03:00 GMT): Shots are reported from the Nonthaburi branch of the Debsirin School on the outskirts of the capital Bangkok. 10:27: The situation is still active at this time, Police Col Passakorn Chaitaweewong tells the BBC. 11:45: The BBC confirms via a police officer that the suspected shooter was 14 years old; local media are now reporting he has been killed. 13:24: Reuters cites police as saying that the gunman shot and killed his grandparents at their home before