The Turkish government's attempts to block local access to social media and news outlets couldn't stop people around the world from tweeting their support after Tuesday's deadly attack on Istanbul's international airport. The hashtags #PrayForIstanbul and #PrayForTurkey have been trending.
From the U.S., presumptive Democratic presidential nominee Hillary Clinton said "all Americans stand united with the people of Turkey."
Others used touching artwork to offer their sympathies. Many of these images were created after past incidents of violence in the country, including a bombing in the Turkish capital that killed 37 people in March.