The Tay Road Bridge is closed, it has been reported.
According to the bridge’s Twitter account, a road traffic collision has closed the bridge northbound.
A witness said the collision had involved three vehicles.
Currently all traffic heading from Fife into Dundee is being held back while the incident is being investigated.
Buses are also being affected, with delays to the 99, 42 and 77 services.
Southbound traffic is not affected.