The state-run People's Daily said rescue work is ongoing at the site in Shuicheng county, Guizhou province, where a thick torrent of mud buried 22 houses in the landslide on Tuesday.
The Britain-based monitor said Russian aircraft carried out the air raids, but Moscow denied it was responsible.
Heavy rains since Thursday have hit several districts in Nepal, especially in the country's eastern region and the southern plains, affecting thousands.
National Transportation Safety Board Vice Chairman Bruce Landsberg said the plane crashed at 9:11am on Sunday at the Addison Municipal Airport. He says, "We don't know a lot about the people on board at this point."
During every monsoon season, which runs from June to September, India experiences fatal incidents of building and wall collapses as rainfall weakens the foundations of poorly-built structures.
The monsoon is crucial for irrigation and groundwater supplies in the impoverished region — home to a fifth of the world's population — and brings relief after the unforgiving summer.
Fifteen others were also wounded in the attack near Yadud village, some seven kilometres (four miles) outside the provincial capital of Daraa city, the Britain-based monitor said.
UN chief Antonio Guterres denounced the "horrendous" attack and demanded an independent investigation, as a divided Security Council failed to condemn the strike.
Sixteen of the dead were decapitated in the second major eruption of violence to rock the country's severely overpopulated and deadly prison system in as many months.
Libya is one of the main departure points for African migrants, fleeing poverty and war, to try to reach Italy by boat, but many are picked up and brought back by the Libyan coast guard, supported by the European Union.