PICS: Letters Have Been Going ‘Missing’ From Train Stations, Emergency Vehicles And Even Croke Park

At a first glance, it looks like vandalism.

And at a second glance, it looks like some very dodgy Photoshoppery.

But in fact, there's a very good reason why companies, venues and even emergency services have been displaying their logos with missing letters on Twitter today.

Enjoy your day out in @CrokePark yesterday? Tweet us your views of @TipperaryGAA vs @Galway_GAA now! #MissingType pic.twitter.com/00T5O32QJt

— The GAA (@officialgaa) August 15, 2016

The signs _re th_t s_mething is missing. _ll will _e reve_led... #MissingType pic.twitter.com/wiQE2W4l85

— Iarnród Éireann (@IrishRail) August 15, 2016

These guys see the need for it, you can donate it & help others live. 3000 units needed each week #MissingType pic.twitter.com/9GI20TR3TS

— Dublin Fire Brigade (@DubFireBrigade) August 15, 2016

Why have we changed our logo? It’s about something we all have... #MissingType pic.twitter.com/eiE9KQN2jp

— Carzone (@CarzoneIE) August 15, 2016

The messages form part of the international #MissingType campaign, in which the letters A, O and B are being 'removed' from logos to support the need for blood donations across the world.

Very clever indeed, eh?

For more information on blood donations in Ireland, you can click here.