Manchester United and Manchester City played out a frantic derby at the Etihad on Sunday afternoon.
18-year-old striker Marcus Rashford bagged the winner for the Red Devils with a well-taken strike in the first-half to keep Louis van Gaal's side very much in the running to secure a place in next season's Champions League competition.
Despite late pressure from the Citizens, United held out to claim all three points at the home of their rivals.
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Unfourtantly, during the showdown, there were some unsavoury scenes in the stands. In fact, one fan of United managed to capture a couple of Manchester City supporters making aeroplane gestures towards the away end.
The gestures seemingly referred to the Munich air disaster, in which as many as eight United players lost their lives while 11 others passed away back in 1958.
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It's far from certain as to whether the FA will take any action, but they will almost definitely be made aware of this tweet:
This latest controversial incident comes just days after United and Liverpool supporters were involved in a number of unfortunate incidents during their Europa League clash.
Both clubs were charged by UEFA after fights broke out in the stands at Old Trafford while flares were lit and seats were thrown.
Key win for United
But it's safe to say that United fans would have been far more pleased with what they had seen on the pitch during Sunday's clash.
After suffering European elimination at the hands of Liverpool in the Europa League, Van Gaal's side produced the required performance to keep their Premier League season alive.
Ultimately, team spirit and class prevailed for the Red Devils on a testing day in Manchester. Just days after the club played out a 1-1 draw against Liverpool, United put everything on the line to secure a vital win at the Etihad.
Van Gaal praised his side, as per the BBC, by stating: "I thought we played fantastic in the first half and the second half was a test of survival because we were very tired.
"We had only two days to recover after the Liverpool game and that is almost not possible.
"We have seen the result from Southampton today. Liverpool were 2-0 up at half-time and at full-time it was 3-2 to Southampton.
"I have not seen the match but I can only conclude it was because of tiredness and that is what we have done to them."
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