Pleas for information about those who have not been seen since last night’s attacks in Paris are beginning to appear on social media.
Photographs and messages have been posted on Twitter under #recherche Paris:
Facebook and solidarity
Shortly after the attacks took place, Facebook installed a service allowing subscribers to check-in and let their contacts know they were safe.
#porteouverte also began trending as parisiens offered shelter to those stranded after public transport services were shut down in the wake of the attacks.
French government website
The French Interior Ministry has set up a website providing information and advice about what to do in the immediate aftermath.
Two numbers have been set up by the Paris Prefecture (local authority)
Appeals for witnesses: 197
Public information: 0800 40 60 05