Emergency services have responded to a 'live incident' in Chesham this evening.

In a post published on Facebook, Thames Valley Police Chiltern and South Bucks said: "Police, fire and the ambulance service are currently dealing with a live incident on Broad Street in Chesham.

"Please allow officers to conduct what is needed for the investigation.

"One person is in police custody."

UPDATE: Three injured and one arrested after town centre bleach attack.