A third motorcyclist has died in the latest of a string of unconnected deaths on Scotland's roads in recent days.

Scott Forbes, from Dundee, was travelling west on the A85, around a mile and half from Lochearnhead in Stirlingshire, on Saturday on his Honda CBR Fireblade when he was involved in a collision at around 1.15pm.

The 49-year-old sustained significant injuries and was treated at the scene but died a short time later, Police Scotland said.

Road policing officers closed the road for about six hours while they carried out an investigation at the scene.

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Sergeant Ruth Aitchison, from the road policing unit in Stirling, said: "This has been a tragic incident where a motorcyclist has sadly died.

"We are currently working to establish the circumstances surrounding this incident and ask that anyone who was on the A85 on Saturday afternoon and believe they have information relevant to this investigation, please contact us."

Mr Forbes' motorcycle is described as white with red and blue markings.

The crash happened around an hour after a 27-year-old motorcyclist was also killed in a collision with two cars in Aberdeen.

The crash at around 12pm on Great Northern Road involved a black Yamaha bike, a black Vauxhall Adam and a silver Volkswagen Caravelle.

Sergeant Malcolm Kinross, of Police Scotland's north east division road policing unit, said: "We are dealing with a tragic incident and our thoughts and condolences are with the family and friends of the motorcyclist.

"At the time of the accident the road was busy and I believe a number of people may have seen the accident or stopped at the scene of the accident."

The fatalities on Saturday follow the death of motorcyclist Ross Quinn, 23, on the A737 in Beith on Wednesday.

Mr Quinn, from Kilwinning, was riding an Aprilia bike that collided with a Mercedes sprinter and a BMW 3. Emergency services were called but he died at the scene.

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Two young men also died in a crash in Strathaven, South Lanarkshire, on Wednesday.

The following morning, a father-of-two died on his way to work in a collision with a lorry in Aberdeenshire.