British Prime Minister Boris Johnson's hard-line Brexit strategy stood in tatters on Thursday after a humiliating week left him without a working majority but unable to call an election.

His supporters ended a night-long filibuster in the upper House of Lords when the government gave up trying to block a measure designed to stop a no-deal Brexit by forcing Boris to seek a delay if he fails to reach an agreement with Brussels. Parliament has now dealt Boris a rapid series of stinging defeats that have left him a weakened leader just six weeks into his term.