The French government intends shut down a far-right fringe group after the killing of a leftist student in Paris.
The death of Clement Meric, 19, in a clash between ultra-right and far-left youths on Wednesday followed months of street violence blamed on far-right groups over the legalisation of gay marriage. He died of head injuries.
The group to be shut down, the Revolutionary Nationalist Youths, is part of a broader movement known as the "Third Way".
Youths group leader Serge Ayoub told French television that it was a "stupid" move and denied any links to Meric's death.
"The Revolutionary Nationalist Youths are in no way implicated by the police in this case ... None have been questioned by police," he said.
The Paris prosecutor said in earlier on Saturday that all suspects under investigation had ties to the Third Way.
In a statement, Prime Minister Jean-Marc Ayrault said the government was looking into whether other far-right groups could be dissolved.