Thousands of people will head to organised fireworks displays in Glasgow and west Scotland over the next few days and on November 5, but police and fire bosses are warning of the dangers of "backcourt bonfires".
Assistant Chief Officer Lewis Ramsay, of the Scottish Fire and Rescue Service, said: "Every year we have illicit bonfires that spread out of control and cover power lines, railway lines or affect motorways, which is very dangerous.
"The number of backcourt bonfires we are dealing with is declining year by year, but there is still work to do to."
In the Gorbals police have already had cases of fireworks being let off into the road, while officers in the north of the city have dealt with anti-social behaviour.
Every year in the run-up to November 5 the fire service and police see a spike in hoax calls and prank incidents.
The number of real bonfire blazes firefighters had to deal with in Glasgow in 2011 was 184, while last year it was 186.
Police are urging people to head to organised displays and leave fireworks to the professionals.
Chief Inspector Hazel Knight will be in charge of policing for the Glasgow Green fireworks event. She said: "We will be carrying out robust policing in the lead-up to Fireworks Night and on the night.
"Of course, we want people to have fun but we also want them to be safe."
Chief Inspector Mark Sutherland, who is in charge of policing for the event at Hecla Park, Drumchapel, said: "Alcohol mixed with fireworks is obviously a bad combination, so we would remind people that the bylaws are still in place and alcohol will be confiscated."