Sport and music fans have been warned over setting off pyrotechnics inside stadiums and at concerts.
Flares and smoke bombs are regularly used at large gatherings such as music festivals and sporting events.
Most notable at football matches, they are regularly seen at both Celtic and Rangers matches.
Fans of both clubs have been in the dock over the use of the explosive type devices, that can reach temperatures of up to 1200 degrees, and have also been seen at music festivals,such as TRNSMT in Glasgow.
Assistant Chief Officer (ACO) Ross Haggart, the Scottish Fire and Rescue Service’s director of prevention and protection, said: “We are seeing a variety of pyrotechnics being used at stadiums and events across Scotland.
“Some people perhaps think it is a way of creating an atmosphere or promoting their team, but all forms of pyro – flares, smoke bombs and flash bangs – pose risks.
“There have been examples of flares being thrown onto pitches or towards individuals.
“People need to understand the potential consequences being struck by such an item can have – a flare can inflict life-threatening injuries as they burn at temperatures in excess of 1200 degrees.
“There’s also the added threat brought by smoke grenades, which emit toxic substances and can cause respiratory difficulty for people who are in attendance simply to enjoy a match or take in a concert.”
ACO Haggart added: “Ultimately, the overall message is a simple one: leave pyro to the professionals who host large-scale events.”
In September last year two people were hurt after smoke bombs were set off during a Livingston v Rangers game.
A 26-year-old woman suffered a minor leg injury and a 13-year-old boy needed treatment to his eyes.
And in October, Celtic were fined over the use of Pyrotechnics during a Europa League game which led to the club closing part of their stadium for a game in November.
Police Scotland’s assistant chief constable Mark Williams said: “There is ‘no place for pyro’ at concerts or football.
“They are dangerous and can cause serious and life changing injuries; most of all to the people using them.”