Far-left French presidential candidate Jean Luc Melenchon has been wooing supporters at a rally in Marseilles.

The southern city is known for its strong support for the National Front and far-right candidate Marine Le Pen.

But Melenchon has gained momentum following a strong performance in last week's TV debate and polls show that he is gaining popularity.

Al Jazeera's David Chater reports from Marseilles.

Europe, France, Politics