A tyre, with its interior filled with petrol and set on fire, is ready to be kicked out on to Rama 4 road in Bangkok. The resulting smoke creates a smoke screen between the army and a large "red shirt" barricade further down Rama 4 preventing the army of getting a clear view of the protesters there.
<a href="//commons.wikimedia.org/wiki/User:Takeaway" title="User:Takeaway">Takeaway</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>