Emergency services are at Colyers Lane in Erith after reports of a fire.
TfL have also stated that buses are not serving the road:
Route 89 is diverted from Erith Road via Bexley Road, Queen's Road, South Road, Northend Road to rejoin normal line of route. Reverse diversion on the return journey. Stops on Colyers Lane are not served.
— TfL Bus Alerts (@TfLBusAlerts) June 2, 2019