The organisers of a Glasgow parkrun event have hit out after an "incident involving a participant spitting".
Elder Park parkrun was alerted to an "incident involving a parkrunner spitting on the course" on Saturday, July 12.
In a post on Facebook, bosses of the event claimed "one of their regular runners ended up with phlegm on their glasses".
They went on to describe the alleged incident as "despicable and disgusting", while saying anyone found spitting during a parkrun at Elder Park in future, which impacts another participant, will be "reported to the police, accordingly".
In the post, Elder Park Parkrun said: "We were alerted on July 11 to an incident involving a parkrunner spitting on the course, to the point one of our regular parkrunners had phlegm on their glasses.
"I thought we were all adults here at parkrun, and basic etiquette was instilled, but more fool me.
"Let me remind you that not only is it a despicable and quite frankly a disgusting act, it's also a criminal offence.
"Anyone found, in future, spitting during a parkrun at Elder Park, which impacts another participant, will be reported to the Police accordingly.
"We love putting on a weekly event for you all, as do all of our amazing volunteers, but things like this make us question why we bother?"
