At least three people have been killed in a series of grenade attacks which have rocked the Thai capital, Bangkok.<br /><br />For weeks, demonstrators have been calling for Thailand's prime minister to stand down. <br /><br />Thursday's attacks happened along Silom Road in the heart of Bangkok's business district - close to where anti-government protesters have been camped for several days. Al Jazeera's Wayne Hay reports from Bangkok.
