The man, known to police for a record of petty offences and psychological problems, has released two female hostages after receiving food and water this afternoon, police sources told Reuters.
"The man has made clear that he is not acting for money, but for religious reasons. He want us to make that message clear," Prosecutor Michel Valet told reporters.
More top news
The former prime minister made the comments as he prepares to return to politics saying he wants to be "part of the debate" on Brexit.
The new measures would mirror childcare vouchers and see workers sacrifice some of their salary to benefit.
Google, Facebook and Twitter could face multi-million pound fines over their failure to remove illegal content, MPs say.