Military helicopters delivered aid Thursday to some of the 800,000 people in southern Pakistan affected by this week's cyclone.
Officials say military choppers and C-130 transport aircraft are rescuing marooned people and dropping emergency supplies to those suffering in Balochistan province.
Thousands of villagers remain stuck on rooftops or in open areas since Cyclone Yemyin hit Pakistan's coast on Tuesday. At least 21 people were killed in Balochistan and Sindh provinces in the past two days.
Near the Iranian border, engineers are working to shore up the swollen Mirani Dam. Officials say the situation is critical.
And in Pakistan's northwestern tribal region, near the Afghan border, another 23 people have been killed by torrential rains and floods.
In neighboring Afghanistan, heavy rainfall has triggered widespread floods in the eastern part of the country. Officials say at least 40 people have been killed.
Several provinces, including Kabul and Kapisa, are affected.
NATO soldiers and Afghan police jointly rescued 42 people who were stranded by high water.
Some information for this report was provided by AFP and Reuters.