BREAKING: Chislehurst streets ON LOCKDOWN - Police hunt 'gunman' and urge 'AVOID AREA'
Police at the scene in Chislehurst
The Metropolitan Police dispatched armed response units to the scene, and cordoned off Perry Street at its junction with Foxbury Avenue.
Residents were told to stay indoors while officers searched the area.
At 6.18pm, the official Bromley MPS account tweeted: "Avoid the area."
Local resident Maddie Radford, said "at least 20 police vehicles" were in attendance.
A helicopter was at the scene as "searches continue", the Met Police said.
Transport for London's Twitter account reported queuing traffic in Chislehurst.
A Met Police spokesman said: "Police were called at approximately 17.20pm on Wednesday, 30 May to Perry Street at the junction with Foxbury Avenue following reports of a man believed to be seen with a suspected firearm.
"Officers, including firearms officers, are in attendance.
"There are no reported injuries.
"Temporary road closures are currently in place whilst enquiries and searches continue."
More to follow...