A man has been arrested on suspcion of grevious bodily harm and assault on police.
The man was stopped this evening, Friday 25 August at approximately 20:35 hours by officers at the Mall outside Buckingham Palace in possession of knife.
During the course of detaining him, two male police officers suffered minor injuries to their arm.
The London Ambulance Service were called and they were treated at the scene. They have not been taken to hospital.
No others persons have been reported injured.
Officers remain on scene and enquiries are ongoing.