Around 80,000 homes are still without power in Japan's Chiba, a week after Typhoon Faxai caused widespread blackouts in the region.
Authorities said it would take until September 27 to fully restore power in the region as the damage is extensive.
The outage also left nearly 16,500 homes without water, leaving the officials to dispatch water tankers to affected areas.
Heavy rain continued to hamper recovery efforts in Chiba and even prompted evacuation orders in the cities of Tateyama and Minamiboso on Monday.
"A delay in recovery work is expected due to heavy rain," said a disaster management official in Futtsu, where more than 1,000 houses were damaged by the typhoon.
Meanwhile, rescue workers warned of the danger of fires caused by short circuits or other issues in areas where power was restored.
Typhoon Faxai powered into the Tokyo region last Monday, packing record winds that killed two people and prompted massive evacuations and blackouts.
US President Donald Trump and Iran threatened to escalate their war by attacking energy and desalination facilities in the Gulf, a potential widening of hostilities that could deepen a regional crisis and add to concerns in global markets.
An Israeli airstrike on a police vehicle on Sunday killed three people in the middle of the Nuseirat camp in the central Gaza Strip, health officials said, hours after another person was killed in a strike on northern Gaza.
The Strait of Hormuz remains open to all shipping except vessels linked to "Iran's enemies", Iran's representative to the UN maritime agency was quoted as saying in Iranian media reports published on Sunday.
The Gulf Cooperation Council (GCC) has renewed its condemnation of continued Iranian attacks on member states, including the targeting of infrastructure and oil facilities, in flagrant violation of international law and a direct threat to regional security, stability and the safety of global energy supplies.