A car drives through a flooded street in Krabi province, south of Bangkok April 1, 2011. Severe flooding and mudslides in southern Thailand have killed 21 people, cut off land and air transportations and delayed shipments of at least 50,000 tonnes of rubber in the world's largest rubber-producing country, authorities said on Thursday. Thailand's navy sent four vessels including an amphibious landing craft with on-board helicopters to the region to deliver supplies and rescue tourists and villagers in areas severely hit. REUTERS/Sukree Sukplang (THAILAND - Tags: DISASTER ENVIRONMENT)