Police are warning motorists to avoid a section of the A350 in Chippenham after a tanker lorry rolled onto its side.
The driver was uninjured.
A police spokesman said: "We were called just before 4am today (April 8) to an incident where a tanker lorry had rolled over on to its side.
"The driver was uninjured. There was no hazardous substance inside.
"We have closed the southbound carriageway of A350 next to the Bumper’s Farm roundabout and are hoping to right the lorry soon."
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