A police spokesman said: “Several incidents of violence and damage have been reported to the police and are under investigation.
“We are aware of a video circulating showing a man lowering a flag in front of a religious building on Melton Road, Leicester.
“This appears to have taken place while police officers were concerned with public order in the area. The incident will be investigated.
“Two arrests have been made: a man on suspicion of conspiracy to commit violent disturbances and a man on suspicion of possession of a knife. They remain in police custody.
“We continue to call for dialogue and calm with the support of local community leaders. We will not tolerate violence or disorder in our city.”
Additional officers have been patrolling the area in recent weeks following a number of disturbances following an Asian Cup cricket match.
Claudia Webbe, Member of Parliament for Leicester East, joined forces with police on Saturday evening to call for calm.
She wrote on Twitter: