A huge smoke haze from a wildfire prompted ships on the River Clyde to sound their foghorns on Monday.
Fumes from the blaze near Inverkip in Inverclyde drifted over Greenock, with social media reports saying ships issued warning blasts due to low visibility.
A spokesperson for Peel Ports Clydeport said there was no specific request for sound signals, but vessels are obligated under the International Collision regulations to operate their foghorns when in or near areas of restricted visibility.
It comes as the Scottish Fire and Rescue Service (SFRS) extended its "extreme" warning for wildfires across parts of Scotland until Thursday.
Firefighters are currently tackling a wildfire which has broken out in the Glendale area of Skye.
Crews from Dunvegan, Portree and Kyle of Lochalsh were called to the blaze shortly after 12:00 and are said to be making good progress with bringing it under control.
Firefighters were called to about 90 outdoor fires over the weekend including large fires in the Galloway Forest Park in Dumfries and Galloway, and Inverpolly Forest in the Highlands.
The fire service had initially put out an "extreme" warning across the whole country until Monday.
But a "very high" warning has been extended for all of Scotland until Wednesday, with an "extreme" risk specifically in the southwest, eastern, central, and northern areas until Thursday.
A large blaze emerged in the Glen Trool area of the Galloway Forest Park on Thursday and spread to Loch Doon in East Ayrshire.
At its height, there were two fire engines at the scene assisted by two helicopters water-bombing the fire.
The blaze was under control by Monday night and one fire crew remains on the scene to inspect the area and make sure it is safe.
