Sofiya Khaliulina joined dozens of other supporters for a 24-hour vigil outside the Siberian hospital where opposition leader Alexei Navalny was being treated for suspected poisoning before his transfer to Germany.

"I realised I had to be there, that I wouldn't sleep until this was over, until they put him on a plane," said the 22-year-old arts journalist.

Olga Kartavtseva, the coordinator of the Omsk office of Alexei Navalny's team, has never previously been involved in politics
Olga Kartavtseva, the coordinator of the Omsk office of Alexei Navalny's team, has never previously been involved in politics AFP / Dimitar DILKOFF

She waited outside the hospital in the city of Omsk until Navalny was medically evacuated to Berlin on Saturday.

The Kremlin opponent whose Anti-Corruption Foundation publishes reports on high-level graft was rushed to an intensive care unit in Omsk on Thursday after falling ill on a flight from Siberia to Moscow.

He spent two days in Omsk as his family and allies wrangled with doctors who initially refused to allow his evacuation abroad and said they found no evidence of poisoning.

Kremlin critic Alexei Navalny spent two days in hopsital in Omsk before being flown out to Germany for treatment for suspected poisoning
Kremlin critic Alexei Navalny spent two days in hopsital in Omsk before being flown out to Germany for treatment for suspected poisoning AFP / Dimitar DILKOFF

By Monday, medics at Berlin's Charite hospital declared test results "indicate poisoning".

Navalny's supporters have accused the Kremlin of trying to cover up a crime.

"This is terrible and a bit scary," said Khaliulina.

A supporter of Alexei Navalny holds up a picture of the Kremlin opponent after he was taken ill with suspected poisoning
A supporter of Alexei Navalny holds up a picture of the Kremlin opponent after he was taken ill with suspected poisoning AFP / OLGA MALTSEVA

"Being in the opposition is hard and it's even harder in the regions. But I don't think that (Navalny's poisoning) will affect ordinary people (in the opposition). The people at the top are the ones targeted," she said.

Navalny's illness appears to be the latest in a long series of attacks on critics and opponents of the Kremlin regime that have sent shockwaves through the opposition.

Navalny has already experienced several apparent attacks but has never come so close to losing his life.

In the far eastern city of Omsk, opposition supporter  Sofiya Khaliulina admits it's 'terrible and a bit scary' after Kremlin opponent Alexei Navalny appeared to have been poisoned
In the far eastern city of Omsk, opposition supporter Sofiya Khaliulina admits it's 'terrible and a bit scary' after Kremlin opponent Alexei Navalny appeared to have been poisoned AFP / Dimitar DILKOFF

Daniil Chebykin, who was organising pickets and bringing food for protesters outside the Omsk hospital, was one of Navalny's local support team.

Russian opposition figure Alexei Navalny's team opened an office in the Siberian city of Omsk three years ago
Russian opposition figure Alexei Navalny's team opened an office in the Siberian city of Omsk three years ago AFP / Dimitar DILKOFF

The 28-year-old former Communist activist is one of the three paid staff at Navalny's local office in the industrial city of 1.1 million people.

Since he started work there, he has seen his parents' home searched, his mobile phone and hard drives confiscated and his bank account frozen. And police have put him in custody for several hours at a time to prevent him attending rallies.

"I understand that these authorities are capable of many things but that doesn't stop me: quite the opposite. It motivates me," he said.

IMAGESRussian opposition leader Alexei Navalny arrives at Berlin's Charite hospital for treatment following a suspected poisoning in Russia. The 44-year-old lawyer and anti-corruption campaigner, one of President Vladimir Putin's fiercest critics, went in
IMAGESRussian opposition leader Alexei Navalny arrives at Berlin's Charite hospital for treatment following a suspected poisoning in Russia. The 44-year-old lawyer and anti-corruption campaigner, one of President Vladimir Putin's fiercest critics, went into a coma after falling suddenly ill Thursday on a plane to Moscow that had to make an emergency landing in Omsk. AFPTV / Marion PAYET

Many said Omsk was not the worst place to be an opposition activist.

"At protests, no one beats people up like in Moscow. The police behave well most of the time," said Khaliulina.

Opened in 2017 on a bustling street and labelled with a huge sticker, the office of Navalny's team in Omsk is hard to miss.

Office coordinator Olga Kartavtseva had never previously been involved in politics.

"The risks were clear from the start: being followed, having your calls tapped and getting searched. That's our reality. We don't even notice it any more. It's routine," said the 39-year-old psychologist.

The criminal probes and police detentions have multiplied against Navalny since he began urging supporters to use tactical voting to push out the ruling party in districts where his supporters are not standing.

His "Clever Voting" website sends registered users recommendations on the best-placed candidate to beat the United Russia candidate.

In 2019 the system's users influenced the course of votes, particularly for Moscow's city parliament.

When Navalny fell ill, he was in Siberia to promote a new "Clever Voting" campaign ahead of regional and local elections in September, although Omsk was not on the itinerary.

Moskovsky Komsomolets newspaper cited law enforcement sources as describing extensive surveillance of Navalny's trip despite his precautions including setting up a "safe house".

Kartavtseva said she expected supporters to get involved in the upcoming elections, with particularly youth activism growing in the regions despite pressure from authorities.

"There's a myth that protests only happen in Moscow and Saint Petersburg. But that's because no one follows what happens elsewhere," she said.

"In reality I think activism is much more important in the regions," said Kartavtseva.