Explosion in Lyon, France, leaves at least 13 people injured

At least 13 people were injured when an explosive device went off at a bakery in central Lyon, France's third biggest city. 

Police in the city of Lyon are currently searching for a man believed to be responsible for the blast which injured several people.

The explosion targeted a bakery on the central street Rue Victor Hugo, in what French President Emmanuel Macron called an "attack."

"It's not for me to give a toll but it appears there are no casualties," said Macron.

"There have been injuries, so obviously I'm thinking of these injured and their families."

The man was caught on surveillance video dropping off a package near the bakery. Police described him as a European or North African male in his early 30s, wearing beige Bermuda shorts, an army-green scarf or head wrap and dark glasses.

He left the scene on a mountain bicycle.

Police have urged people to avoid the area. 

A police source said the package, which contained "screws or bolts," had been placed in front of the bakery near a busy corner at around 5.30 p.m. local time.

Police said that none of the injuries appear to be life-threatening.