 "Biden")
Ukrainian prosecutors said on Friday they would review 15 previous investigations related to the founder of gas company Burisma, where the son of former US Vice President Joe Biden was a board member until this year.
It is the first concrete sign of how Ukraine plans to handle investigations that are being closely watched in Washington, where US President Donald Trump, a Republican, is fighting an impeachment battle against the Democrats.
Trump had asked President Ukrainian President Volodymyr Zelenskiy in a July 25 phone call to investigate Biden and his son Hunter, who earned money from Burisma.
That call has
