DANGLING power lines which sent sparks flying in the air may have been caused by hot temperatures.

Traffic on the M271 was "at a standstill" on Wednesday afternoon following an electrical fault at Franconia Drive.

The road in Nursling had to be closed in both directions as engineers were called out to repair the faulty cables just before 3pm.

Workers from Scottish and Southern Electricity Networks (SSEN) were at the scene alongside firefighters and police officers.

Read more: Video shows sparks flying from power lines at Nursling Industrial Estate

Power supply was restored at 5.35pm. The issue is thought to have been caused by the heat.

A spokesperson from SSEN said: "Temporary interruption to supply experienced by five customers in Nursling yesterday was promptly repaired by SSEN engineers.

"All customers were back on supply by 5.35pm.

"Summer heat can cause overhead lines to sag and to avoid this happening, SSEN engineers will return to site in the next few days to install insulated conductors."

Read more: Sparking power lines cause gridlock on M271 - As it happened

Daniel Cunningham, who witnessed sparks coming out of power lines, said: "I was getting a carpet when I heard and saw these sparks.

"I didn't think much of it because I thought they might be doing some welding.

"It was only when I started walking up that I realised people had their phones out.

"I saw that a powerline was dangling slightly and was hitting the other which was causing all these sparks to fly.

"They have shut the road and it is now gridlock in both directions.

"There were delays on the M271."

SSEN is asking members of the public who notice damage to the network to stay well away and call the company by dialling 105.

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