At least 99 people have been killed by flooding in central Vietnam sparked by Tropical Storm Mirinae. An official report today said a further 20 people are missing after the storm struck on Monday. It said 69 of the fatalities were from Phu Yen province, with the rest coming from Binh Dinh, Khanh Hoa and Gia Lai provinces. Television pictures from Phu Yen and Gia Lai showed rescuers in boats helping desperate residents escape some of the worst flooding there in decades. Water in places reached the rooftops of buildings, where some residents had sought refuge. According to a UN report, Mirinae destroyed 900 homes and damaged more than 14,000 others, while 18,000 hectares of rice land was flooded. The National forecasting agency said heavy rain keeps battering central provinces of Vietnam and warned of a high risk of landslides and flash flooding as water levels in rivers keep rising.