At least 19 people were killed after multiple landslides in the hills of India's southern state of Kerala on Tuesday, local media reported, with heavy rain and poor internet connectivity hampering rescue efforts.
Hundreds of people are likely to be trapped and as many 19 people have died, including a child, the Indian Express newspaper reported.
Television visuals showed water gushing through rocks and fallen trees, with many houses destroyed.
"The situation is serious. The government has pressed all agencies into rescue," state Forest Minister A K Saseendran told Reuters.
The India Meteorological Department has forecast extremely heavy rain in the state on Tuesday.
Relief efforts are ongoing, and two helicopters of the Indian Air Force have been mobilised, the Kerala chief minister's office said in a statement.
Rescue efforts were hampered as there was no internet connectivity in the area, Mohsen Shahedi, a senior National Disaster Response Force officer said.

Philippines confirms visit by alleged Bondi gunmen amid terrorism concerns
Israeli forces kill Palestinian teen in West Bank, health ministry says
Trump sues BBC for defamation, seeks up to $10 billion in damages
FBI foils 'terror plot' targeting Los Angeles
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial