A Facebook tool that let people check whether friends were safe after deadly attacks in Paris will be used more widely in the future, the social network said.
Canadian Prime Minister Justin Trudeau faced increasing calls to delay bringing in 25,000 Syrian refugees by year's end due to security concerns, following attacks in Paris.
Britain should "think again" about taking part in air strikes on Islamic Statejihadists in Syria, Defence Secretary Michael Fallon said, after attacks in Paris that left at least 129 people dead.
The Los Angeles premiere of the latest "Hunger Games" movie has been toned down and at least two television shows have been cancelled in light of the Paris attacks.
Israel criticised "appallingly impudent" remarks by Sweden's foreign minister for drawing a parallel between the Paris attacks and the Palestinian-Israeli conflict.
President Francois Hollande said France would step up the battle against the Islamic State (IS) group in Syria in the wake of Paris attacks he dubbed "acts of war".
Blasts shook the Islamic State group's Syrian stronghold Raqa as French air strikes hit weapons depots and a training camp in response to the attacks in Paris.
French warplanes pounded Islamic State's Syrian stronghold in retaliation for a wave of coordinated attacks claimed by the jihadists which left 129 people dead in Paris.
Up to 20,000 people, among them Prime Minister Lars Lokke Rasmussen, gathered for a candlelight vigil at the gates of the French embassy in Copenhagen mourn the victims of the Paris attacks.