At least one BT street cabinet was damaged in the London riots earlier this week.
The broadband provider has confirmed, via its Twitter account, that an arson attack in Woolwich has affected broadband services in the area.
Some 160 premises have been affected by the incident, leaving many homes without access to the internet.
BT tweeted that engineers are working to reconnect all premises to the internet – a process that should be complete by early next week.
The broadband provider has pleaded with customers to be patient as it attempts to clear a backlog of upgrade and repair work.
Earlier this week, BT Openreach declared a national status of Matters Beyond Our Reasonable Control for areas of the UK affected by civil unrest.
This means that during this period, essential repairs will take precedence over broadband provision and upgrades.