Manchester City won the Premier League title on Sunday following a 2-0 win over West Ham at the Etihad Stadium.
City secured the win with goals from Samir Nasri (left) and captain Vincent Kompany.
At the final whistle, thousands of City fans ran onto the pitch to celebrate the club's second title in three years.
Pitch invasion
City ended the campaign two points clear of Liverpool, who came from behind to defeat Newcastle 2-1 on the last day of the season.
Manchester City pitch invasion today. Wow. #mcfc
Images and video from the Etihad show the size of the pitch invasion on Sunday afternoon.
And how excited City fans were at winning the league.
People inevitably took selfies on the pitch as the celebrations began.
Pitch invasion selfie #mcfc #champions
The scenes were pretty incredible.
Pitch invasion!
Jokes were made at Steven Gerrard's expense.
The Etihad pitch invasion!
And soon fans of other clubs began sharing pictures of "real" pitch invasions, such as this one at Shrewsbury Town.
Pfffft, this is a pitch invasion! #salop
And this pitch invasion by Leicester City fans.
This pitch invasion was better than Man City's
And whatever happened at Sampdoria v Naples this weekend.
Pitch invasion at the Etihad perhaps not quite as popular as the one at Sampdoria-Napoli today http://t.co/6gJVlg6k4U
However, Wigan might win the prize for the most depressing pitch invasion of the season.
Man City's pitch invasion was alright but it's not quite as good as Wigans at their final home game v Blackpool