Thousands of Thai pro-government demonstrators under the "Red Shirt" camp massed in Bangkok on November 10.

It was their first show of force since a wave of opposition protests against a controversial political amnesty bill.

According to Thai media, the protesters gathered at a suburban park in Bangkok and the march was expected to draw tens of thousands of people by the late day.

Red Shirt leaders said that political opponents were using the amnesty to try to oust Thailand ’s Prime Minster Yingluck Shinawatra.

The Red Shirt camp’s march took place in the context that opposite factions held protests last week to oppose the political amnesty bill, which was passed on November 1 by Thailand’s lower house.

The country’s Senate was due on November 11 to debate the bill which is expected to grant amnesty to all parties as well as individuals related to political unrest since 2004.

The opposite groups believed that the bill has been crafted to pave the way for a return of former Prime Minister Thaksin Shinawatra, who is Yingluck's brother.

Thaksin Shinawatra was sentenced in absentia to a two-year jail term by the Thai Supreme Court over a Bangkok land grab scandal and still remains in self-exile in Dubai.-VNA