VIDEO: Iran's Reza Pahlavi splattered with red liquid in Berlin

Iran's Reza Pahlavi was splattered with red liquid on Thursday as he left a building in Berlin.

Pahlavi had just departed a news briefing, during which he criticized the ceasefire between the United States and Iran, when the incident occurred outside Germany's federal news conference building.

He appeared unhurt by the liquid coating the back of his blazer and neck, and waved to his supporters before he got into a car that drove away. Police said the liquid appeared to be tomato juice.

The alleged perpetrator, whose name was not released in line with German privacy rules, was immediately detained by police.

Pahlavi, 65, is the son of Iran's former shah, who was so widely hated that millions took to the streets in 1979 to force him from power. Nevertheless, Pahlavi is trying to position himself as a player in his country's future, though it's unclear how much support he has in Iran after he has been in exile for nearly 50 years.

Hundreds of his supporters demonstrated Thursday near Germany's parliament building, according to German news agency dpa.

Pahlavi, who was not invited to meet with any government representatives during his visit to Berlin, argued on Thursday that the ceasefire agreement assumes the Iranian government's behavior will change and "you're going to deal with people who all of a sudden have become pragmatists."

"I don't see that happening," he said. "I'm not saying that diplomacy should not be given a chance, but I think diplomacy has been given enough chance."

Pahlavi in Berlin called on Europeans to do more to support Iranian people fighting for democracy.

"Will the free world do something, or watch the slaughter in silence?" Pahlavi said.

Meanwhile, more than an hour after the incident, German Chancellor Friedrich Merz released a statement saying the government welcomes the extension of the ceasefire.

"This presents an important opportunity to resume diplomatic negotiations in Islamabad with the aim of making peace and averting further escalation of the war," the statement said. "Tehran should seize this opportunity."

Agence France-Presse