Japan’s Prime Minister Fumio Kishida will not seek re-election as leader of the ruling Liberal Democratic Party (LDP), which he says needs a “new start”.
The 67-year-old LDP veteran is expected to step down as PM after the party elects a new leader in September.
Support for Mr Kishida has fallen after his party was hit by a corruption scandal, and as his government battles rising living costs and a slumping yen.
His approval ratings had plummeted to 15.5% last month – the lowest for a PM in more than a decade.
Within the party, some have doubted whether Mr Kishida can lead the LDP to a win in the next general election due in 2025. The LDP has been in power almost continuously since 1955.
Analysts have told the BBC that Japan is going through a “once-in-a-generation” political crisis as the ruling party fights to clean up its image.
Last December, four LDP cabinet ministers resigned within a fortnight over a fundraising scandal involving the ruling party’s most powerful faction.
Five senior vice-ministers and a parliamentary vice-minister from the same faction, formerly led by the late PM Shinzo Abe, also quit.
Japan’s prosecutors have launched a criminal investigation into whether dozens of LDP lawmakers received proceeds from fundraising events that saw millions of dollars kept off official party records.
The scandal unfolded as Japanese households struggled with food prices soaring at the fastest rate in almost half a century.
The world’s fifth-largest economy has long remained stagnant – average incomes have not risen in 30 years but its population is ageing rapidly.
