The EU stands by the people and government of Turkey at this very difficult time. We are ready to provide practical support to Turkey. We extend our deepest condolences to the bereaved and sympathies to those injured.

Terrorist groups will not prevail in their goal to undermine international steadfast determination to defeat them. The EU, Turkey and all other regional and international partners will work together even more closely to tackle this threat.

http://eeas.europa.eu/statements-eeas/2015/150720_05_en.htm