20.59 Police and anti-terror magistrates reportedly identified the three assailants, two of whom are brothers, reports The Telegraph's Henry Samuel.
The two brothers, born in Paris’ 10th arrondissement are French nationals called Saïd and Cherif Kouachi, aged 34 and 32.
Cherif was reportedly part of an Iraqi jihadi network dismantled in the nearby 19th arrondissement of Paris. He was sentenced to three years in prison with 18 months suspended in relation to terror charges in May 2008.
The two brothers are Franco-Algerians who came back from Syria this summer.
Hamyd Mourad, 18, is of no fixed abode. Last year, he reportedly was enrolled in a lycée in Charleville-Mezières around 50 miles from the Champagne capital of Reims, northeastern France. Police were reportedly hunting for him in Reims last night. The nationality of the youngest is unknown.
Their identity cards were circulating widely on Twitter.
Earlier police conducted searches in the Paris suburbs of Pantin, in Seine-Saint-Denis, where the assailants were thought to have driven to.
They also conducted searches in Genevilliers, northwest of Paris.
Social media last night, people were reporting a significant presence of CRS anti-terror police in Reims. Another Twitter user suggested that there was an “incessant” helicopter surveillance.