British Prime Minister Keir Starmer has announced plans to leave office, bringing fresh uncertainty to UK politics as Labour begins the search for a new leader.

The decision comes at a time when his government has been facing increasing pressure over a number of domestic issues, with questions growing in recent months about his long-term future at the helm.

Starmer, who led Labour back to power after years in opposition, is expected to remain in office until arrangements are made for a successor to take over.

His announcement has immediately shifted attention to who will emerge as the next leader of the governing party. Several senior Labour figures are already being mentioned as possible contenders, although no replacement has been confirmed.

The resignation marks a significant moment for the Labour government and opens the door to a leadership contest that could shape the party's direction in the years ahead.