The political agreement was the centrepiece of the opening day in southern Italy of the annual summit of G7 leaders, attended for a second successive year by Ukrainian President Volodymyr Zelenskiy.
He said he had signed a 10-year security accord with Japan on the sidelines of the summit and that Japan would provide Ukraine with $4.5 billion this year. Zelenskiy will also sign a new, long-term security accord with U.S. President Joe Biden later in the day.
The G7 plan for Ukraine is based on a multi-year loan using profits from some $300 billion of impounded Russian funds.
The technical details are to be finalised in the coming weeks, a G7 diplomatic source told Reuters. The source, who asked not to be named, said the additional funding would arrive by the end of this year.
