Offensive chants from Manchester City supporters overshadowed the club’s 1-0 victory at Blackburn on Monday night.

City fans repeatedly chanted ‘Who put the ball in the Munichs’ net’ to Yaya Toure — the midfielder who scored the FA Cup semi-final winner against Manchester United at Wembley earlier this month.

The chant refers to the 1958 air crash which cost the lives of 23 people, including eight United players. The club has tried to stamp out the chant but it appears to have resurfaced in recent seasons.

And with the Toure-Munich song being noisily chanted by many within the 3,500 City contingent just 24 hours after the screening of a BBC drama chronicling the crash, the return of the Munich chants has left senior figures at Eastlands concerned and uneasy.

In 2008, City fans earned widespread praise for impeccably honouring a minutes’ silence at Old Trafford marking the 50th anniversary of the disaster.

But the club are now expected to renew efforts to stamp out the chants, which began to resurface following Carlos Tevez’s controversial move from United to City in July 2009.