The assault occurred on Avenue Berthelot as journalists were covering the mobilization. Prefect Étienne Guyot condemned the incident in the name of press freedom.
The television crew consisted of two journalists and two security officers.
A BFMTV cameraman was set upon, then chased. He was subsequently kicked while on the ground, on the sidelines of the demonstration.
Shortly before the assault, a barricade was erected and then set on fire.
An independent freelancer told AFP that a member of the crew was struck several times. His camera was thrown to the ground, smashed, and then stolen. He was in shock.
The Lyon demonstration drew 8,000 people, according to the authorities. Activists for several causes marched there, for the climate, children's rights, and youth.
The atmosphere remained good-natured for the vast majority of the procession. Tensions, however, quickly emerged at its head.
Demonstrators fired firework mortars. Law enforcement responded with tear-gas grenades.