Hanoi, Aug. 28 -- At least five people have been killed and 15 injured across 12 northern Thai provinces after Typhoon Kajiki swept across northern Thailand, according to the Thai disaster agency.

Since August 24, flooding and landslides have hit 12 provinces in the north and northeast, including Chiang Mai, Chiang Rai and Mae Hong Son, affecting more than 6,300 people and 1,800 households, the agency said.

The water level is expected to keep rising in some areas. Although Kajiki weakened into a tropical depression as it moved inland, the agency forecast continued heavy rains across the northern, northeastern and central regions through next week.

Thailand typically experiences heavy rainfall between June and September. But experts war...