(Updates Sept 27 story with withdrawal of Interpol red notice, Azarov comments)
By Anton Zverev and Ilya Zhegulev
MOSCOW/KIEV, Sept 27 (Reuters) - Ukraine must investigate the activities of U.S. presidential candidate Joe Biden's son to establish whether his role in a Ukrainian gas company complied with the country's laws, Mykola Azarov, Ukraine's former prime minister, said in an interview.
Azarov did not specify to which Ukrainian laws he was referring.
Hunter Biden's role in the company, Burisma Holdings Limited, is in focus after the White House released a memo showing U.S. President Donald Trump asked his Ukrainian counterpart, Volodymyr Zelenskiy, in a July phone call to get prosecutors to look into his activities. Zelenskiy agreed.
"It's a fact (his directorship and fees) and not made up. It should be investigated so that the 'i's can be dotted and the 't's crossed," Azarov told Reuters.
A spokesperson for Joe Biden's campaign declined to comment on Azarov's investigation call and none of Hunter Biden's critics have provided any evidence that he broke Ukrainian law.
Ukraine's National Anti-Corruption Bureau has said it is investigating activity at Burisma between 2010-2012, but that it is not looking into changes to its board in 2014, when Hunter Biden joined.
Democrats in the U.S. House of Representatives are pursuing an impeachment inquiry against Trump, a Republican, after a whistleblower complained about his call with Zelenskiy.
Lawmakers are looking into whether Trump's actions jeopardised national security and the integrity of U.S. elections, saying he appeared to be soliciting a political favour from a foreign leader to get re-elected.
Azarov lives in Moscow, but says he remains well-connected with parts of Ukraine's political establishment, adding he would like to return one day.
Hunter Biden was a director on Burisma's board from 2014 until at least 2018, according to documents filed by the company in Cyprus, where it is registered.
INTERPOL
Azarov, who was prime minister from 2010-2014, is himself wanted by Ukrainian authorities. An Interpol red notice issued in 2015 at the request of Ukrainian authorities cited accusations, including embezzlement and misappropriation.
Interpol cancelled that red notice in 2017 after Azarov successfully challenged it, according to an Interpol document viewed by Reuters. Interpol said it did not comment on individual cases.
Azarov has denied any wrongdoing.
Reuters cannot determine whether there is any active investigation into Azarov in Ukraine. A spokesman for Azarov said he was no longer regarded as a suspect by Ukrainian authorities, though a notice on the Ukrainian Interior Ministry's website updated on Friday said he was still wanted by the country's security service.