(BBC) Bottles have been thrown at police during an operation to crack down on illegal street market stalls during Ramadan, officers said.
The incident happened at 01:30 BST on Sunday as a large crowd gathered in Small Heath, Birmingham.
Police said the operation alongside trading standards officers followed residents’ complaints about roads being blocked and anti-social behaviour.
One officer suffered minor injuries, West Midlands Police said.
Numerous reports of criminal damage are also being investigated, it added, after other missiles were thrown.