(AFP) - Protesters turned out in cities around the world on Thursday to show solidarity with Ukraine against Russian President Vladimir Putin's "surreal war" on the former Soviet country.

In Berlin, several hundred people rallied at the Brandenburg Gate, which had been lit up in the blue and yellow colours of the Ukraine flag the previous evening.

Anton Kushch, 35, a Ukrainian software engineer, said he woke up to "a push notification on my phone about war" and had been sent "messages on my phone with all these burning tanks on the roads".

"It's hard to believe, it's surreal," he said. "This is just catastrophic for the whole world... But we have what we have, a tyrant sitting there in the Kremlin."

Student Sofia Avdeeva, 22, from the disputed Donetsk region, described Putin as a "war criminal" and said she hoped "the same thing he is putting people through happens to him and his family".

Russians also joined the protests, with some holding placards outside the Russian embassy.

"We want to show that we are against the war," said Ekaterina Studnitzky, 40, a teacher from Moscow, holding a cardboard Ukraine flag.

- 'Brothers and sisters' -

"Ukraine was always a very friendly and close country to us. We have a lot of relatives there, a lot of friends. Nobody wants this war," she said.

"This is just terrible. Ukrainian and Russian people are brothers and sisters," said Olga Krupacina, 32, a student from Kaliningrad.

In Paris, several hundred people gathered outside the Russian embassy.

Protesters chanted "Stop Putin, stop the war" and carried placards with slogans declaring "No war" and "Putin Ukraine 2022, Hitler Poland 1939".

"We are here to support the people of Ukraine, those who are still there," said French-Ukrainian protester Teresa Voytanovska, 42.

Around 150 demonstrated in Stockholm outside the Russian embassy, waving Ukrainian flags and holding signs reading "Ukraine, solidarity!", "Stop Russian aggression" and "Stop the bloody maniac".

"We feel destroyed... It's a very bad feeling when your mum calls you at six o'clock in the morning and says that the war has started. So we just decided to leave our jobs and to come to say 'no' in front of the Russian embassy," said Yevhenii Osypchuk, a 27-year-old car mechanic.

In the Netherlands, about 100 pro-Ukrainian protesters gathered in front of the Russian embassy in The Hague and a similar number demonstrated on Amsterdam's Dam square, Dutch public broadcaster NOS reported.

Images showed many people draped in Ukrainian flags, carrying placards saying "No war" and chanting "Putin is a killer".

- 'We just want peace' -

In Dublin on Thursday morning, a small group of protesters gathered outside the Russian embassy where red paint was splattered on the mission's emblem by a gated entrance.

Later in the day, dozens of protesters gathered outside the national parliament building in the centre of the Irish capital carrying Ukrainian flags and placards emblazoned with "stand with Ukraine" and "Putin get out of Ukraine".

There were also demonstrations in other cities including Beirut, Bern, Istanbul, London, Lisbon, Sofia, Tokyo and Warsaw.

In Tokyo, a female protester who wanted to remain anonymous said she had been unable to contact her mother in Ukraine for three hours on Thursday morning, as the invasion began.

"I was really worried. I don't know if she will evacuate, but I could talk to her and I know she is fine, at least for now," she said.

In Beirut, protesters outside the Russian embassy waved flags and chanted "Russia go home".

"We do not want World War III to happen," said Suzan Jaramani, 27, a Ukrainian-Lebanese university teacher. "We just want peace. So leave us be and Putin, take your people and just go back to where you belong."

© Agence France-Presse