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Tesla is being investigated by the US government after reports the firm’s self-driving cars had broken traffic laws, including driving on the wrong side of the road and not stopping for red lights.

It said it was aware of 58 reports where the electric cars had committed such violations, according to a filing from the National Highway Traffic Safety Administration (NHTSA).

An estimated 2.9 million cars equipped with full self-driving tech will fall under the investigation.

Tesla, whose boss Elon Musk recently became the world’s first half-trillionaire, has been approached for comment.

The NHTSA’s preliminary evaluation will “assess the scope, frequency, and potential safety consequences” of the “Full Self-Driving (Supervised)” mode.

In this mode – which costs extra for Tesla owners – the cars can make lane changes and turns, but drivers must always be alert to take over at any time.

According to the NHTSA report, there were six crashes caused by cars stopping at a traffic light before setting off while the light was still red.

Four of the crashes resulted in injuries.

The traffic authority said Tesla had taken action “to address the issue” of cars going through red lights at a particular intersection in Maryland, where the problem repeatedly occurred.

The agency will also investigate reports of vehicles going into the opposite lane when making a turn.

It said some of the reported incidents gave “little notice to a driver or opportunity to intervene”.

Tesla is already facing an investigation from the NHTSA over the cars’ door locking mechanisms, after cases where children were reportedly trapped inside Model Y cars.

In some instances, car owners chose to smash the windows to let them out.

Tesla recently unveiled cheaper models of two of its most popular cars, as it tries to compete with cheaper electric vehicles often made by Chinese companies.

Its boss Elon Musk was formerly a close ally of President Donald Trump before a public falling-out earlier in the year.

In July, he announced the formation of a new political party, the America Party, in an attempt to rival the Republicans and Democrats.

Almost 75,000 farmed salmon have escaped into open water in Loch Linnhe in the Highlands after a fish farm was damaged by Storm Amy.

Operator Mowi said a net on a pen at its Gorsten farm was torn during the severe weather.

The fish farm company said it was investigating the incident.

Scottish Greens MSP Ariane Burgess and charity WildFish Scotland said the escaped fish could pose a risk to wild salmon.

High winds during last weekend’s storm caused power cuts and also damaged sub-sea cables that bring internet services to Shetland and Tiree.

Mowi said it regretted the escape of fish into Loch Linnhe, a sea loch in Lochaber.

A spokesperson said: “Initial investigations indicate that the intense weather conditions caused mooring anchors to drag, and this brought the pen net into contact with a flotation pipe subsequently causing a tear.

“Despite challenging conditions, Mowi swiftly informed the relevant authorities, including local fisheries stakeholders and is now undertaking a full investigation.”

Ms Burgess said: “The escaped fish pose a serious threat to Scotland’s wild salmon.

“When farmed salmon breed with wild fish, it weakens the wild population and reduces their chances of survival.

“Every escape adds to the pressure on our already depleted wild salmon populations.”

WildFish Scotland has also raised concerns around farmed and wild salmon breeding.

It described the incident as one of the biggest in recent years.

The Scottish government said it was committed to working with industry, conservation groups and communities to ensure fish farming had a “sustainable and prosperous” future.