BANGKOK (Reuters) -At least five people have been killed and seven remain missing after heavy rains and landslides brought on by tropical storm Kajiki swept across northern Thailand, the Thai disaster agency said Thursday. Kajiki made landfall as a typhoon in Vietnam earlier this week, killing seven people, inundating more than 10,000 homes and offices as well as 86 hectares of rice and cash crops, the Vietnam government said on Wednesday. In Thailand, flooding and landslides 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 disaster agency said.