England supporters in Bucks are being asked not to paint St George's flags or red crosses on the highway network.
Buckinghamshire Highways has taken to social media and said the act is dangerous and there are many other, more appropriate ways to cheer them on.
There is also a cost to removing them, as well as a safety risk to the workers who undertake the task.
It follows a recent report of a mini white roundabout in Marlow being painted red and white.

Risborough Rangers Stadium Break-In Threatens Memorial Fundraising Efforts
Local author publishes second novel
Buckinghamshire schools take part in Dragons' Den-style green technology challenge
Big Give Boost for Hospice at Home Care
Consultation on Churchway Speed Limit Reduction in Haddenham
Leader of Buckinghamshire Council responds to national Budget
Shoppers get a festive lift with Boxing Day train route
1,300 Arrests as TVP Target Town-Centre Crime











