Tanks appear in Bangkok. Thailand calls state of emergency (reddit.com):
A Thai here, reporting live from the capital.
23:25 Sep 19 local time... All local television channels are shut down. Tanks are rolling in the city. The capital has been completely taken over by the MILITARY coup, facing no resistance. Cellphones have also been cut. It is also rumored that some government representatives have been held captive.
No blood shed so far. Streets are dead quiet.
Of course, their biggest mistake is forgetting about the Internet.