Arunachal Pradesh: A person was killed, five others went missing, and six districts were cut off after heavy rainfall triggered flash floods and landslides in Arunachal Pradesh’s Keyi Panyor district, officials said on Wednesday.

The flash floods followed intense overnight rainfall between June 23 and 24, affecting areas in and around the North Eastern Electric Power Corporation (NEEPCO) project site in Yazali Circle. Around 50 houses were damaged in the disaster.

Keyi Panyor Superintendent of Police Angad Mehta said the body of 35-year-old Nirmala Gupta, a teacher at NEEPCO’s Vivekananda Kendriya Vidyalaya, was recovered after hours of search operations. Rescue efforts involving inflatable boats will continue, while the Indian Air Force has carried out aerial sorties to assess the damage and search for survivors.

Authorities said monsoon-related disruptions have cut off large parts of Keyi Panyor, Kamle, Kra Daadi, Kurung Kumey, Lower Subansiri and Upper Subansiri districts. Major landslides were reported along several key highways, while a strategic bridge linking East Kameng and Pakke Kessang districts sustained damage.

Personnel of the Border Roads Organisation and the Highway Department have been deployed to restore connectivity. Rescue teams from the State Disaster Response Force (SDRF), National Disaster Response Force (NDRF), police and local volunteers are searching for the missing persons, including a 13-year-old child.

Chief Minister Pema Khandu expressed concern over the situation and directed officials across all 28 districts to remain prepared for monsoon-related emergencies. He stressed the importance of disaster preparedness and public cooperation during adverse weather conditions.

Meanwhile, the Assam government has issued a high alert for downstream districts following reports of extremely heavy rainfall and flash floods in Arunachal Pradesh. Officials warned that rising river flows could lead to a sharp increase in water levels and current velocity in the Brahmaputra and its tributaries.

The alert has been issued particularly for Dhemaji, Lakhimpur, Biswanath and Sonitpur districts. Chief Minister Himanta Biswa Sarma said the situation is being closely monitored and advised residents in vulnerable areas to avoid flooded zones and refrain from travelling in small boats.

Elsewhere in Assam, floods have affected 102 villages across seven districts, damaging standing crops on more than 2,647 hectares of land. Relief centres have been opened for over 5,600 affected people, with 184 taking shelter in nine relief camps. The affected districts include Bajali, Nalbari and Cachar.

Heavy monsoon rains have also disrupted normal life in neighbouring Sikkim, where multiple landslides in West Sikkim district have cut off the district headquarters, Gyalshing.