Reza Pahlavi, the son of Iran's ousted shah, argued Thursday that any negotiations with the clerical leadership in Tehran amount to "appeasement" and voiced hope that renewed street protests will topple it.

Pahlavi, 65, was speaking on a visit to Berlin, where he was greeted by some supporters but also bitter opponents -- with one activist splashing a red liquid on him before being detained by police.

By Panu Wongcha-um

BANGKOK, April 23 (Reuters) - More than 30 million people will be pushed back into poverty by the impacts of the Iran war including disruptions to fuel and fertiliser supplies just as farmers are planting crops, U.N. development chief Alexander De Croo said on Thursday.

Fertiliser shortages - worsened by the blocking of cargo vessels through the Strait of Hormuz - have already lowered agricultural productivity, the Administrator of the United Nations Development Programme (UNDP) told Reuters.

Lebanon's leaders accused Israel on Thursday of committing a war crime, after an airstrike killed a Lebanese journalist in the country's south, with the Israeli army saying it was reviewing the incident.

Rescuers and the reporter's employer on Wednesday confirmed the death of Amal Khalil, a 42-year-old journalist who worked for the Lebanese daily Al-Akhbar.

The civil defence agency said she was killed in a strike on a house in the village of Al-Tiri.

By Michael Holden and Sarah Young

LONDON, April 23 (Reuters) - Britain's King Charles heads to the United States next week for the most high-profile trip of his reign so far, on a mission to shore up the future of the two allies' "special relationship" which the Iran war has plunged to its lowest point in 70 years.

The state visit marks the 250th anniversary of the U.S. declaration of independence from British rule, when the then 13 American colonies decided to split from King George III, Charles's five-times-great-grandfather.

A US naval blockade of Iranian ports is likely to squeeze Iran's oil output in the coming weeks but claims it will throw the Islamic republic into economic free fall remain premature, analysts say.

After weeks of bombing and counter-strikes, focus has shifted to the standoff in the Strait of Hormuz, which ordinarily carries around a fifth of the world's oil and liquefied natural gas.

The latest developments in the Middle East war:

- Iran gets first Hormuz toll -

A senior Iranian parliament official said on Thursday that Tehran has received the first revenue from tolls it imposed on the strategic Strait of Hormuz in its war with the United States and Israel.

"The first revenue received from the Strait of Hormuz tolls was deposited into the Central Bank account," said deputy speaker of parliament Hamidreza Hajibabaei, according to Tasnim news agency.

- Clearing Hormuz may take 6 months -

BEIRUT/JERUSALEM, April 22 (Reuters) - The U.S. will host a second meeting between Lebanese and Israeli envoys on Thursday, with Beirut seeking the extension of a ceasefire between Israel and Hezbollah, a day after Israeli strikes killed at least five people including a journalist.

The U.S.-mediated ceasefire, which is set to expire on Sunday, has yielded a significant reduction in violence, but attacks have continued in southern Lebanon, where Israeli troops have seized a self-declared buffer zone.

Iran-backed Hezbollah says it has "the right to resist" occupying forces.

BANGKOK, April 23 (Reuters) - The closure of the Strait of Hormuz has forced policymakers in Asia to face questions over the security of other maritime chokepoints, including the Strait of Malacca, which is the world's busiest waterway for international trade.

WHAT IS THE MALACCA STRAIT?

The 900-km (550-mile) long Malacca Strait, bounded by Indonesia, Thailand, Malaysia and Singapore, provides the shortest sea route from East Asia to the Middle East and Europe.

The Pentagon blasted as cherry picking and false on Thursday a news report saying that the department assessed it could take six months to completely clear the Strait of Hormuz of Iranian-laid mines.

The Washington Post reported on Wednesday that the Pentagon shared the six-month estimate during a classified briefing for the members of the House Armed Services Committee, citing three unidentified officials familiar with the discussion.

President Donald Trump said Thursday the United States is in no rush to end the war with Iran but "the clock is ticking" for the Islamic republic, as a third American aircraft carrier arrived in the Middle East.

Iranian media reported blasts over the capital Tehran, a first since an increasingly tenuous ceasefire in the Middle East war came into effect two weeks ago.

It was not clear what caused the explosions, although an Israeli security source told AFP that their country was not currently striking Iran.