Sudden floods triggered by heavy rains have killed more than 400 people across parts of Pakistan, India-administered Kashmir and Nepal, authorities have said, with scores of people still missing.

ISLAMABAD (Reuters) -Nearly 200 people were killed in torrential rains in northwest Pakistan over the past 24 hours, with bad weather also bringing down a rescue helicopter, local officials said on Friday.

More than 300 people are dead in northwest Pakistan after two days of intense rains and floods, local officials have said.