Kent Police say that although there is no intelligence to suggest any direct threat to anyone living in the county, it has deployed additional resources across the region to provide a presence in potentially vulnerable communities.
Assistant Chief Constable Gary Beautridge said: "We are working with local communities and partners whilst the Metropolitan Police investigate the full circumstances around this incident.
"We are providing high visibility policing in areas across Kent and would appeal for people to stay calm and work with us to ensure the safety of everyone in our county."
More top news
Philippa has Saturday evening's weather for the east
Philippa has Saturday evening's weather for the west
Detectives investigating a spate of high value burglaries at a family-run business in Berkshire have released CCTV images.