US President Donald Trump on Monday threatened widespread destruction of Iran's energy resources and other vital infrastructure, potentially including desalination plants that supply drinking water, if a deal to end the war is not reached "shortly." Iran, meanwhile, struck a key water and electrical plant in Kuwait, and an oil refinery in Israel came under attack. A drone hit a Kuwaiti oil tanker in Dubai waters, causing a fire that authorities were working to control early Tuesday, the Dubai Media Office said.