Tens of thousands of anti-government protesters have marched through the streets of the Thai capital, reviving their whistle-blowing, traffic-blocking campaign to force the resignation of the country’s prime minister.

Central Bangkok became a battleground today as the army stormed a barricaded protest camp and the Red Shirt leadership surrendered, enraging demonstrators who fired grenades and started fires that cloaked the skyline in a black haze.

The Thai government has claimed that the army was successful in its initial push to clear a protest zone in central Bangkok.