By Kentaro Okasaka, Uditha Jayasinghe and Lucy Craymer

TOKYO/COLOMBO/WELLINGTON, March 31 (Reuters) - Indonesia's leader visited Tokyo this week in Asia's latest flurry of fuel bartering efforts to offset crippling shortages caused by conflict in the Middle East, a key source of regional energy supplies.

The race for alternatives has hotted up as China, the world's second largest economy, imposed fuel export bans, while nations such as South Korea and Thailand try to exploit the lifting of U.S. sanctions on Russian energy as a stopgap move.

US President Donald Trump said Tuesday that the war with Iran may be over in two or three weeks and it will be up to other countries to secure the vital Strait of Hormuz oil shipping channel.

The White House announced meanwhile that Trump would give an address to the nation at 9:00 pm Wednesday (0100 GMT Thursday) "to provide an important update on Iran."

By Kate Abnett

BRUSSELS, March 31 (Reuters) - European Union governments should prepare for a "prolonged disruption" to energy markets as a result of the Iran war, the bloc's energy chief has told countries' ministers ahead of an emergency meeting on Tuesday.

In a letter to energy ministers, dated March 30 and seen by Reuters, EU Energy Commissioner Dan Jorgensen said governments were "encouraged to make timely preparations in anticipation of a potentially prolonged disruption".

DUBAI, March 31 (Reuters) - People accused of spying or cooperating with "hostile states" could face the death penalty and confiscation of all assets under a recently enhanced law, an Iranian judiciary spokesperson said, a month into the war with the United States and Israel.

Even sharing photos or videos that could aid enemy targeting may be treated as intelligence cooperation, the spokesman added.

BEIJING, March 31 (Reuters) - China's foreign minister and his Pakistani counterpart will discuss the situationin Iran during the latter's visit to China on Tuesday, China's foreign ministry said.

The two countries have similar positions on major international and regional issues, a spokesperson for the ministry said in a press briefing.

(Reporting by Ethan Wang and Liz Lee; Editing by Christopher Cushing)

Iran fired missiles across the Middle East on Tuesday as its capital was hit by fresh explosions, after US President Donald Trump threatened the country's key oil export hub, power stations and desalination plants.

Israeli Prime Minister Benjamin Netanyahu, Trump's partner in attacking Iran, said more than half of his military aims had been achieved, but both leaders refused to put a timeline on an operation that has ignited a month-long regional war and jolted global markets.

March 31 (Reuters) - The Israeli military said on Tuesday that four of its personnel were killed and two wounded during combat in southern Lebanon.

(Reporting by Enas Alashray and Yomna Ehab; Editing by Himani Sarkar)

By Alexander Cornwell, Trevor Hunnicutt and Yomna Ehab

TEL AVIV/WASHINGTON, March 31 (Reuters) - Iran attacked and set ablaze a fully loaded crude oil tanker off Dubai on Monday, as President Donald Trump warned the U.S. would obliterate Iran's energy plants and oil wells if it does not open the Strait of Hormuz.

The apparent strike on the Kuwait-flagged Al-Salmi is the latest in a string of assaults on merchant vessels by missiles or explosive air and sea drones in the Gulf and Strait of Hormuz since the U.S. and Israel attacked Iran on February 28.

March 30 (Reuters) - U.S. President Donald Trump told aides he is willing to end the military campaign against Iran even if the Strait of Hormuz remains largely closed and leave a complex operation to reopen it for a later date, the Wall Street Journal reported on Monday, citing administration officials.

Reuters could not immediately verify the report.

(Reporting by Fabiola Arámburo in Mexico City; Editing by Himani Sarkar)

By Jasper Ward

WASHINGTON, March 30 (Reuters) - The FBI said on Monday that an attack on the largest Jewish temple in Michigan earlier this month was an "act of terrorism" inspired by Hezbollah.