Laser pens have been shone into the eyes of sailors aboard ships in the Highlands.

A man was given medical attention after a beam was shot directly into his eye at Cromarty Firth port.

There have been five reported incidents at the harbour in Invergordon since mid-June.

The laser pens are all believed to have been shone from the southern shore of the Cromarty Firth.

Harbour master Torquil Macleod said it is becoming a "serious problem" for workers.

Highland search and rescue helicopters have been targeted twice by laser pens this year.

The most recent incident involved a coastguard chopper returning to Inverness after a rescue on Skye.

In the worst cases, laser pens can cause serious retinal burns and haemorrhages within the eye.