Traffic is moving slowly on the M4 in Newport due to icicles on an overhead bridge.

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UPDATE 9.25AM: Congestion has now eased.

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The latest traffic reports show "very slow traffic" on the eastbound carriageway of the motorway, between Junction 27 (High Cross) and Junction 25 (Caerleon) – either side of the Brynglas Tunnels.

The AA said work is under way to "remove icicles from a bridge" over the M4.

A "traffic break" is being used to control the flow of vehicles, the AA added.

The latest traffic cameras show queues of slow-moving traffic on the eastbound side of the road as far east as Junction 24 (Coldra).

More to follow.