Argentine President Fernando de la Rua has submitted his resignation as the second day of violent anti-government demonstrations continued across the country. The resignation still must be approved by Congress to take effect.

Rioting, looting and protests brought the government near to collapse Thursday. The death toll has reached 20, most of them looters killed by police.

There are reports that the unrest could lead to a general strike throughout Argentina. More than 1,000 people have been arrested since the unrest began on Wednesday, most for looting.

Demonstrators throughout the day called for de la Rue's resignation. Economy Minister Domingo Cavallo resigned Wednesday, the day de la Rua imposed a 30-day state of siege.

The country faces economic collapse as it struggles to pay $132 billion US in public debt.

About 100 people gathered outside of government house at dawn on Thursday clanging pots and pans. They demanded the president resign over his austerity measures.

Argentines are frustrated with the poor state of the economy and how it's been handled by de la Rua and Cavallo. In his two years in office, de la Rua has come up with nine different economic plans and faced eight general strikes.

The declaration of a state of siege gives the government special powers to prevent rioting and violence.