At least 20 people have been killed when new monsoon rains caused flooding in northwestern Pakistan, local officials say, as the region is ravaged by an unusually intense and deadly monsoon season.

The United States monitors the India-Pakistan situation "every single day", said US Secretary of State Marco Rubio on Sunday, reiterating claims by American President Donald Trump of having helped in averting a nuclear escalation between countries.

Deadly cloudbursts are wreaking havoc across mountainous regions of India and Pakistan, with intense, sudden deluges proving fatal in both nations. These extreme weather events involve tremendous rainfall over concentrated areas in short periods.

More than 200 people remain missing in one district of north-west Pakistan as a result of devastating monsoon flooding and landslides, an official has said. Flash floods have killed more than 300 people in Pakistan and Pakistan-administered Kashmir in recent days, with most of the deaths recorded in the mountainous Khyber Pakhtunkhwa province.

Pakistan and the United Kingdom have reaffirmed their shared commitment to deepening cooperation across political, economic, climate, and people-to-people domains.

Munir's remarks come as the US and Pakistan continue to strengthen their ties under US President Donald Trump.

Pakistan banks set to benefit from better opportunities to generate business volumes due to improving operating conditions amid receding macroeconomic headwinds, rating agency says