Thailand's main opposition party petitions court to annul election, disband ruling party

Anti-government protesters take their positions behind barbed wire during a rally outside the office of the permanent secretary for defense where Prime Minister Yingluck Shinawatra was reportedly working inside Monday, Feb. 3, 2014 in Bangkok, Thailand. Thai protesters vowed Monday to stage larger rallies in central Bangkok and push ahead their efforts to nullify the results of elections that were expected to prolong a national political crisis. (AP Photo/Wason Wanichakorn) (The Associated Press)

Thailand's main opposition party has petitioned a court to annul last weekend's national elections on constitutional grounds.

The Democrat Party argued in Tuesday's petition to the Constitutional Court that the poll was unconstitutional on several grounds.

It also wants Prime Minister Yingluck Shinawatra's ruling party dissolved. Yingluck called Sunday's elections in a bid to defuse anti-government protests that started three months ago and have not eased.

The Democrat Party boycotted the election, and the protesters aligned with it disrupted voting in Bangkok and the south, the opposition's strongholds, preventing millions of people from casting ballots.