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.

Spanish rescuers search trains in hope of finding survivors of deadly crash
At least 6 killed in cyclone off India's eastern coast
Netanyahu set to remain caretaker after inconclusive Israeli election
At least 68 people killed in Spain after two high-speed trains collide
Syria says main border crossing with Jordan to resume operations on Wednesday