There is no innocent explanation for the toxin being found in samples taken from Navalny's body, Foreign Office says.
The prime minister's speech comes after a tumultuous week in his political career back home.
Great Britain's women curlers kickstart their campaign with a superb first victory of the 2026 Winter Olympics while GB's men also won but three British women missed out on skeleton medals.
Kemp plays the infamous Grant Mitchell in the long-running soap.
The new party is set up by former Reform UK member, Rupert Lowe.