The Ukrainian prosecutor general announced that his office would be reviewing all the cases that were shut down by his predecessors, including a number of cases that mention the founder of the energy company where Joe Biden’s son, Hunter Biden, sat on the board.

Prosecutor General Ruslan Ryaboshapka made the announcement Friday, telling reporters that his office under newly elected President Volodymyr Zelensky would reopen a bevy of closed cases, citing potential corruption from his predecessors.