London Mayor Boris Johnson says Andrew Mitchell's apology "underscores how wrong it is to abuse police officers". Mr Johnson also commented on the police decision not to arrest Mr Mitchell:
That's an operational matter.
In my book you shouldn't abuse police officers. The crucial thing for me is Andrew Mitchell has apologised.
More top news
As Tibetan Buddhist communities celebrate Buddha's birthday, Lydia Polzer explains the true meaning of the special event.
Video has emerged showing a man being tasered by police during a tense stand-off in east London.
A man from London who was the subject of cruel online taunts has had the last laugh when a group of celebrities threw a party for him in LA.