French police have made an appeal for information in their hunt for a man suspected of planting a parcel bomb in Lyon, which injured 13 people, reports BBC News.
The device went off outside a bakery on a busy street in the heart of the country's third-biggest city.
Those hurt, including a young girl, appear to have suffered superficial injuries.
Anti-terrorist prosecutors have taken over the investigation and security has been boosted in public places.
Police released a grainy image of the suspect taken from CCTV footage.
A police source told AFP news agency the suspect appeared to be about 30 and was using a black mountain bike.
The device, which was reportedly full of screws, nuts and bolts, exploded around 5.30pm on the rue Victor-Hugo, in the historic city centre, between the Saône and Rhône rivers.
French media quoted a receptionist at a nearby hotel as saying there had been a "deafening blast".
"I saw people running and panicking and heard several cries," Alexis Saillan told BFMTV.
The last time a parcel bomb had exploded in France was in 2007 when a device killed one person and injured another in front of a law office in Paris, AFP news agency reports. Police never found the bomber
See more of this report from BBC News, with images and video.