Police say two other officers wounded and attacker shot dead in incident described by François Hollande as "terrorist in nature."
The alarming ads, from the humanitarian medical group Doctors of the World, click through to a site that seeks to humanize Syrian refugees.
Not long after Tamerlan Tsarnaev bombed the Boston Marathon, investigative reporter Michele McPhee went looking for answers.
A lorry has smashed into a store in central Stockholm, killing at least three people, Swedish police say.
At least 11 people have been killed in a blast on a metro in the Russian city of St. Petersburg, state-run TASS reported.
In the face of the ongoing terrorism threat in France, Paris’s iconic monument, the Eiffel Tower, will undergo a massive facelift to tighten security by next autumn.