At least 25 people have been killed since typhoon Usagi made landfall in south China's Guangdong Province on Sunday evening, said the provincial government on Monday.

The deaths included 13 in Shanwei City, six in Shantou, three in Jieyang and one in Guangzhou, Heyuan and Chaozhou each, said the emergency management office of Guangdong provincial government.

Around 5.5 million people have been affected and 310,000 displaced by the storm. Some 8,490 houses have been destroyed and 50,800 hectares of cropland damaged. The typhoon has incurred direct economic losses of 7.1 billion yuan (1.16 billion U.S. dollars) in the province.

Usagi -- Japanese for rabbit -- was designated a super typhoon on Saturday after it passed across the Philippines and Taiwan, moving toward the Chinese mainland. Although it weakened on Sunday, winds still reached 162 km per hour when it hit the land in Shanwei at 7:40 p.m. on Sunday.

Usagi has devastated the eastern part of Guangdong, with trees blown down and water and electricity supplies severed. Worst hit was Shanwei.

The provincial flood control headquarters said the typhoon had caused flooding in coastal areas, rivers to overflow and landslides in rural areas.

School classes and air, railway and shipping traffic were still suspended on Monday in 14 cities in Guangdong, including the provincial capital of Guangzhou, Shenzhen, and Zhuhai, as well as neighboring Hong Kong and Macao, as a precaution against the storm.

From 8 a.m. Sunday to 8 a.m. Monday, eight meteorological stations in Guangdong reported precipitation of more than 250 mm, with Chaozhou, Jieyang, Shantou and Shanwei reporting 107 mm on average.

Water supplies were completely cut downtown and power was cut to 210,000 households, according to the Shanwei water official. Some 487 fishing boats sunk and 20 bridges were damaged.

As of 3 p.m. Monday, electricity remained out for 1.8 million households in Guangdong and about 1.1 million mobile users were affected by damage of telecommunications stations.

Usagi has been downgraded into a tropical depression and its center entered neighboring Guangxi Zhuang Autonomous Region at midday on Monday.