NEW : Authorities evacuate at least 7,000 people as clashes erupt . Sunsern Kaewkumnerd said . 13 Thai troops are injured and three are killed , the military says . A Thai military spokesman says the cause of the clashes is unknown . The Associated Press reports that a group calling itself the Red Shirt movement has claimed responsibility for the violence in Bangkok.
NEW : Authorities evacuate at least 7,000 people as clashes erupt . 13 Thai troops are injured and three are killed , the military says . A Thai military spokesman says the cause of the clashes is unknown . The Associated Press reports that a group calling itself the Red Shirt movement has claimed responsibility for the violence in Bangkok.