Footage of Manchester City fans' offensive chants about Bobby Charlton during their clash against Brighton has emerged on social media.

The world of football came together to mourn his death, with players and fans alike offering their condolences to Charlton's family.

A video circulating on social media showed one group singing, "Boby's in a box" on an Etihad Stadium concourse. You can watch the footage below.

Manchester City have since responded to reports of the chanting and launched a public appeal for any information anyone may have about the individuals to help them be banned.

"The club condemns these chants in the strongest terms and apologises unreservedly to the family and friends of Sir Bobby, and to all those at Manchester United.

"On this day of all days, when the stadium stood to pay tribute to our own legend in Francis Lee, Manchester City supporters should understand and appreciate as keenly as anyone the need for respect in our game.

"Our security team are studying CCTV footage of the concourse areas. We are thankful to those who have already come forward to report this matter.

"We continue to appeal for any information that can help us identify the individuals involved so that we can take the appropriate action to issue banning orders."

"Fans who see or hear abusive behaviour are encouraged to text 0770 0151 894 to make our dedicated security team aware of what they have witnessed."

The Premier League have since responded to reports of the chants, confirming they are in support of City's investigation.

"We welcome Manchester City seeking information on those responsible and will support any subsequent action."

City make the short trip to Old Trafford next weekend for the first Manchester derby of the season, and Guardiola said his will play their part in further tributes to a true football legend.

"Next week when we go there, to Old Trafford, the first time, we will be present to make a tribute," he said. "I love this country for many things, but one of the things is how they take care of legends. They are part of the club, they travel and represent."

After graduating through the club's youth Academy, Charlton played 758 games and scored 249 goals over 17 years at Old Trafford, winning the European Cup, three league titles and the FA Cup.

For his country, he won 106 caps and scored 49 goals, and famously lifted the 1966 World Cup.