Thirty people were injured after the explosion on a train at Parsons Green.
BBC News Online, September 17, 2017
Has everyone lost all comprehension of what simple words mean? ‘After’ means ‘later’, not ‘at the same time’. This sentence implies that there was an explosion, then an interval, then something else happened and the passengers (or ‘people’, if you need to distinguish them from the giraffes on the train) were injured. It is obvious nonsense, yet I see it all the time.
All you need here is to replace ‘after’ with ‘in’, and ‘people’ with ‘passengers’, and you get a sensible sentence.
Thirty passengers were injured in the explosion on a train at Parsons Green.