5.30am: Anti-government People's Democratic Reform Committee (PDRC) protesters start blocking polling stations in Bangkok districts and several southern provinces before they open for voting at 8am.
8.20am: Ban Bang Kapi School, the election site catering to the largest number of people registered to cast advance ballots, calls off advance voting after protesters use chains to lock the entrances to the station. Some districts cancel advance voting, including Pathum Wan, Don Muang, Bang Bon and Dusit districts.
9am: Election Commission (EC) secretary-general Puchong Nutrawong reports that the election is progressing properly in the North, the Northeast and the Central region, while voters and election officials in several districts of Bangkok and the South are unable to enter polling stations.
9.30am: Bangkok Metropolitan Administration (BMA) Clerk Ninnart Chalitanont announces that so far, voting at 16 of 50 polling stations in Bangkok has been cancelled.
9.30am: A Centre for Maintaining Peace and Order (CMPO) meeting chaired by caretaker Labour Minister Chalerm Yoobamrung, director of the CMPO, lists the locations where protesters have surrounded polling stations.
Chalerm says the EC must be held responsible for failing to hold advance voting in several provinces.
10.30am: In Nakhon Ratchasima province, around 800 anti-government protesters marching to an advance-polling station in Muang district come close to blows with 200 red-shirt supporters of the government. Police move in to calm the situation.
12pm: The BMA announces that so far, 45 polling stations are blocked. Meanwhile, the EC in 11 southern provinces calls off advance voting. Only four provinces – Yala, Pattani, Narathiwat and Satun – remain open.
1.40pm: Suthin Tharathin, a core protest leader, is shot dead at a polling station at Wat Sri Iam in Bangkok’s Bang Na area, and 10 others are injured in the attack.
2pm: Police spokesman Pol Maj-General Piya Uthayo reports that all Bangkok polling stations for advance and absentee ballots have been closed due to protests.
3.30pm: EC commissioner Somchai Srisuthiyakorn announces that advance voting in 89 of 375 constituencies has been cancelled.
Only about 400,000 of the approximately 2 million people who registered to cast advance ballots were able to do so.