BANGKOK, Nov. 30 (Xinhua) -- Over 30 Thai anti-government protestors at Government House were injured in a grenade explosion here early on Sunday, a local TV reports said.

    News reports said the grenade landed near the prime minister's offices, which have been occupied by protestors led by the People's Alliance for Democracy (PAD) since August.

    Meanwhile, about 100,000 passengers have missed flights since protestors besieged and shut down Bangkok's two main airports Suvarnabhumi International Airport and Don Mueang domestic airport on Tuesday.

    The total number of the affected travelers could hit 300,000 as the two airports remained closed, Tourism and Sports Minister Weerasak Kowsurat said.

    PAD supporters are seeking to topple the government, which they accuse the government of being on behalf of ousted and exiled Prime Minister Thaksin Shinawatra.