A driver shouting "God is great" in Arabic has reportedly driven into a crowd of people in the eastern French city of Dijon leaving 11 people injured, two seriously.
Images posted on social media in the immediate aftermath appeared to show paramedics treating multiple casualties in the road.
A source told AFP news agency that the motives of the attacker remained "unclear".
The reported attack comes just a day after a man was shot dead after attacking three police officers with a knife in Joue-les-Tours.
More top news
When it opened in 1967 the bridge was seen as cutting-edge.
Father Kevin Mullan was speaking during a service in remembrance of those killed in the bomb on Market Street 20 years ago.
Some 38 dogs and 18 cats were rescued during a raid at Janet Oxlade’s home in Bexleyheath, Kent, in January.