The official requests from a special prosecution unit in Kiev started in December 2014, and involve a corruption case targeting Ukraine’s former Justice Minister Oleksandr Lavrynovych.
Manafort has not been charged with a crime. Prosecutors want him to testify, Ukraine’s prosecutor for special investigations Serhiy Gorbatyuk said.
Prosecutors allege that Lavrynovych illegally diverted more than $1 million in government funds to a prominent New York City law firm — Skadden, Arps, Slate, Meagher & Flom.
Lavrynovych had hired Skadden to review the 2011 jailing of former Ukrainian Prime Minister Yulia Tymoshenko, who had received a seven-year sentence for allegedly harming Ukraine’s interests in gas supply negotiations with Russia.