Violent clashes between anti-government protesters and police resumed on Sunday evening on the biggest day yet of "car mob" rallies.

The "car mob" rallies blocked roads in Bangkok and other provinces on Sunday as the protesters took to their vehicles as part of a campaign organised by red shirt activists.

Some protesters riding motorcycles and cars joined the car mob rallies at key locations including the Ratchaprasong and Lat Phrao intersections.

Around 5pm, a group of mostly young protesters broke away from the main rallies and gathered at Din Daeng intersection where confrontations with police have occurred over the past week.

It was reported that bricks and giant firecrackers were thrown at officers who were using large cargo containers as a line of defence near where Prime Minister Prayut Chan-o-cha lives.

Fifteen minutes later the police fired tear gas and water cannons at the protesters.

There were also protest events in Ayutthaya, Prachin Buri, Pathum Thani, Kanchanaburi, Khon Kaen, Lampang, Lamphun and Chiang Mai.

The protest groups have all accused the government of gross mishandling of the third Covid-19 outbreak.