LONDON/MOSCOW (Reuters) - Two of the Kremlin’s most prominent critics joined forces on Tuesday to try to stop a Russian becoming the next president of international police organization Interpol, saying they feared Moscow would abuse the post to hunt down its detractors.

A view shows Alexander Prokopchuk, Russian candidate to head international police organisation Interpol, during a ceremony to open a monument to police in Bangkok, Thailand in this December 2015 handout photo obtained by Reuters November 20, 2018. Russian Interior Ministry/Handout via Reuters

Interpol’s general assembly is due to elect a new president on Wednesday after incumbent Meng Hongwei of China went missing in September. Beijing later said it had detained him in connection with a bribery probe.

The battle to succeed him turned political after Alexander Prokopchuk, a former major general in Russia’s Ministry of the Interior, emerged as one of the favorites to get the job, a prospect that alarmed critics of President Vladimir Putin.

Russian dissident and former oil tycoon Mikhail Khodorkovsky on Tuesday gave a news conference in London alongside U.S.-born Kremlin critic Bill Browder at which both warned against Prokopchuk’s election, saying it would make it easier for the Kremlin to manipulate Interpol. Moscow has rejected such claims.

“Appointing such a person to the head of the international policing organization would not only damage the reputation of all Interpol member states, but would carry a grave threat to those who may be considered potential victims of political persecution,” said Khodorkovsky.

Putin freed Khodorkovsky in 2013 after he had spent a decade in jail for fraud, a charge Khodorkovsky said was fabricated to punish him for funding political opposition to Putin. The president has said he regards the businessman as a common thief.

Browder, the head of investment fund Hermitage Capital Management, has led a campaign to expose corruption and punish Russian officials he blames for the death of lawyer Sergei Magnitsky in 2009 in a Moscow prison.

“If a Russian is president of this organization the Russian will be acting on the instructions of Vladimir Putin,” said Browder, who used to support the president before becoming one of his most implacable international critics.

“To put his representative in charge of the most important international crime fighting organization is like putting the mafia in charge,” said Browder.

Russian prosecutors said on Monday they suspected Browder of ordering a string of murders, including of Magnitsky, in a twist the financier dismissed as ludicrous.

‘SMEAR CAMPAIGN’

On Monday, four U.S. senators jointly urged President Donald Trump to oppose Prokopchuk’s candidacy and accused Russia of abusing Interpol to settle scores and harass dissidents by issuing warrants, known as red notices, for their arrest.

Browder was briefly detained by Spanish police in May on a Russian Interpol red notice that was then deemed invalid.

Politicians in Lithuania and Ukraine have urged their governments to quit Interpol if Prokopchuk is elected, while Britain has said it is backing his South Korean rival Kim Jong Yang, currently the organization’s senior vice-president.

The Kremlin said on Tuesday that opposition to Prokopchuk’s candidacy by U.S. senators amounted to election meddling.

“This is probably a certain kind of interference in the electoral process of an international organization,” Kremlin spokesman Dmitry Peskov told reporters.

Russia’s Ministry of the Interior defended Prokopchuk.

“We see a campaign aimed at discrediting the Russian candidate,” it said in a statement, complaining about what it called the unacceptable politicisation of Interpol.

“Alexander Prokopchuk has many years of experience working in the law enforcement sphere and is currently Interpol’s vice-president... which confirms the trust and high esteem in which his work in this international organization is held.”

If elected, he would carry out his duties solely in Interpol’s own interests, the ministry said.

Interpol’s 194 member states each have a vote in Wednesday’s election in Dubai, it said on its website. The winner will serve the last two years of Meng Hongwei’s original four-year mandate.