Starmer in a video statement on social media said it keeps alive the possibility of peace and insists the UK will keep fighting to bring home Israeli hostages.
Ahead of the announcement, Canada became the first G7 nation to make the same move, followed by Australia.
However, Israel’s foreign ministry says recognition is nothing but a reward for jihadist Hamas.
Families of those still being held in Gaza express concern in an open letter to Starmer, they said recognition complicates efforts to bring home their loved ones.
Earlier, Deputy Prime Minister, David Lammy defended the UK’s position, saying now is the time to stand up for a two-state solution.
