Arson arrest over fire at Palace of Westminster
Officers investigating a small fire at the Palace of Westminster in July have arrested a 32-year-old man.
The fire started in part of the palace on 23 July.
The man was arrested shortly after 15:00 BST on suspicion of arson with intent to endanger life and criminal damage, the Metropolitan Police said.
The man is being interviewed at a south London police station where he remains in custody, a spokesman for Scotland Yard said.