Across the world people have rushed to show their solidarity with those Paris in the aftermath of the worst atrocity in France in decades.
Miles away from the horror of the terror attacks people logged on to social media sites to share their and shock and sadness at the events which unfolded on a Friday night in the French capital.
People have been using the hashtag PorteOuverte, which translates as Door Open, in a bid to stand in unity with Parisians.
A sketch of the Eiffel Tower as a peace sign was also posted on Instagram by users including One Direction singer Harry Styles and chef Jamie Oliver.
The site credited the image to Jean Jullien who captioned it "Peace for Paris", while Instagram used it alongside a different version of the hashtag which became widely-used after the Charlie Hebdo killings in January, posting #jesuisparis.
Facebook also enabled a safety check feature called Paris Terror Attacks to allow people to let their friends know they are safe, or to try to locate people they know in the city.