Residents in Japan's quake-hit southwestern prefecture of Kumamoto put out heaps of debris for collection as the region baked under intense heat.

The heat and a lack of water supplies have added to the challenges in the severely damaged areas where Prime Minister Sanae Takaichi briefly visited for the first time since a magnitude 7.1 quake hit Kumamoto Prefecture on Japan’s southern main island of Kyushu on Tuesday.

Thirty-eight people died during the quake, including one who died of apparent heat stroke while taking shelter in a car in hot weather and one other whose cause of death is still being investigated, officials said on Monday.

Residents put out heaps of debris, broken furniture and damaged appliances for collection, while in the towns of Uki and Hikawa, construction of temporary housing began. Some hotels and inns are offering their rooms for evacuees.

More than 46,000 households remained without water and many also face fuel shortages as the region suffers sweltering heat, stoking fears of heat-related illness.