A woman has been arrested after scaling the front gates of Buckingham Palace, police said.
Scotland Yard said the woman, believed to be aged in her 30s, was quickly detained by officers before she gained access to the palace grounds.
Officers saw her climbing the front gates of the palace at 5.40pm on Saturday, a Met Police spokesman said.
She was arrested on suspicion of trespass and remained in custody at a central London station at the time of publication.
A young woman was detained for apparently climbing the gate at Buckingham Palace. The police arrived and cuffed her within seconds. pic.twitter.com/ssBl0VJiwz— Aidila Razak (@aidilarazak) October 7, 2017
The incident is not being treated as terror-related.
Journalist Adidila Razak posted on Twitter: "A young woman was detained for apparently climbing the gate at Buckingham Palace. The police arrived and cuffed her within seconds."
Another witness said they had seen police make an arrest after someone tried to climb the gates of the palace.
A spokesman for the force said: "She was arrested on suspicion of trespass under Section 128 of the Serious Organised Crime and Police Act 2005, trespass on a designated site and is currently in custody at a central London police station."