According to AA Maps, the A32023 Lambeth bridge was closed from around 2am in both directions.
As a result, bus routes 3 and C10 are currently operating on diversion.
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Lambeth Bridge is a road traffic and footbridge crossing of the River Thames in central London.
Possibly due to the closure, traffic has built up on nearby roads such as the A312, which runs alongside Victoria Tower Gardens South.
The Metropolitan Police has confirmed that the incident is ongoing and it is unknown when the bridge will reopen.
