The barricade of the vehicle that Congress president Rahul Gandhi was conducting his roadshow on in Wayanad collapsed, injuring a press photographer.
A reporter for television channel TV9, Supriya said that the rope of the vehicle severed and three persons fell on her.
A few Congress workers climbed on the vehicle and were also holding on to the side rails of the moving vehicle.
The injured photographer has been rushed to a nearby hospital. The roadshow lasted 35 minutes.
Thousands of party workers including women and youth gathered waving party flags and raising slogans.
As the massive crowd of supporters gathered on both sides of the road, security personnel had a tough time controlling the workers to clear the way for the vehicle.