Extreme weather killed at least 30 people in Beijing after a year's worth of rain fell in less than a week, forcing the relocation of more than 80,000 people, damaging roads and cutting off power and communications in more than 130 villages.

The dayslong rainstorms have left 30 dead in the Chinese capital and eight dead in its neighboring province of Hebei, state-run broadcaster CCTV said.

Beijing city officials have admitted failures in their response to heavy flooding that killed 31 residents of a care home.