4 other people had been harm, two of them significantly, in a knife assault in Paris close to the previous places of work of the satirical mag Charlie Hebdo, officers say.
A suspect has been detained within the within reach Bastille house after police stated no less than one particular person had fled the world via metro.
A safety cordon has been arrange across the places of work within the 11th arrondissement.
The general public have been instructed to steer clear of the world.
A number of colleges within the house have additionally been locked down, native media say.
A blade – described as a machete or a meat cleaver – used to be recovered on the scene of the assault.
The arrested suspect used to be detained with blood on his clothes, French media reviews say.
The assault comes as a high-profile trial is beneath method in Paris of 14 other people accused of serving to two jihadists perform the 2015 assault on Charlie Hebdo, by which 12 other people have been killed.