Thousands join tribute march in French city Several thousand people have gathered for a peaceful march in tribute to two young men killed in a gang-related brawl in the French city of Grenoble. Doves were released as the march got underway. Family and friends of Kevin and Sofiane were joined by members of the public, all dressed in white or carrying a white flower. One woman had taught one of the victims. "Here in France, we try to emphasise the law of the Republic over the law of the street, but this time we failed," she said, "and now one of my friends has lost her son." The two 21-year-olds were not known to police. They died from knife wounds after a quarrel broke out in front of a local school. Youths from a nearby neighbourhood had become involved. 12 people have been arrested in connection with their deaths. French President Francois Hollande visited the scene himself on Monday night. The government has declared the neighbourhoods concerned "priority security zones." More about: Death, France, Grenoble, Protest