Police in London apprehended a man armed with a knife and accused of flinging suspected shotgun cartridges onto the grounds of Buckingham Palace, thwarting an apparent attack plot.

Asper says that neither King Charles nor his wife, Queen Consort Camilla, were at the palace at the time. They will be crowned on May 6.

Just days before the coronation of the 74-year-old monarch, which will be attended by global nobility and world leaders amid a massive security operation, the police took immediate action to apprehend the suspect.

The Metropolitan Police also said that officers “as a precaution” detonated a strange bag the man was carrying. Later, it said that it was not treating the situation as linked to terrorism right now.

The man was detained on suspicion of possessing an offensive weapon after a knife was discovered during a search, the London force reported three hours after the incident.

Met Police chief superintendent Joseph McDonald said, “Officers worked right away to stop the man, and he has been taken into police custody.” There have been no accounts of shots being fired or people getting hurt, either by police or by other people.