The army in Thailand says it will shut down central Bangkok in a crackdown on the anti-government Red Shirt protesters.
Authorities say they will bring in armoured vehicles and bolster checkpoints in the Thai capital’s commercial district.
The move comes after the Red Shirts ignored a deadline to end their two-month long demonstration.
Yet movement leaders have defiantly called on more of their supporters to descend on the camp.
The Red Shirts want Prime Minister Abhisit Vejjajiva to quit, arguing he has no popular mandate — he was installed in the role in a parliamentary vote 17 months ago.
Abhisit on Wednesday called off planned elections for November 14 and says the protesters must stop their street rallies before any further talks can take place between the two sides.
The Red Shirts draw their support from Thailand’s rural poor and are close to ousted Thai premier, Thaksin Shinawatra.