Thailand has been in a political crisis since mass rallies began in November.
The protesters are demanding an unelected People's Council to replace the Yingluck regime.
Opposition-backed protesters had blocked polling in several opposition stronghold provinces and in some parts of Bangkok on February 2 and during advance polling on January 26.
The protesters accuse Yingluck of acting as a proxy for her fugitive brother, former premier Thaksin Shinawatra, who was ousted in a coup in 2006.
He lives in self-exile in Dubai to escape a jail term on a corruption conviction.
