Olympic park destroyed with fire

I found a news from here.

According to the news, a fire which was broke out at a Olympic park had damaged about 80 cars and 1500 people in Sydney, Australia on Sunday. It was because of cigarette butt scattered around the place and a car exhaust pipe, which burned a glass there and spread.
Fortunately, there was no death despite that many people and cars are injured and destroyed by it. It seems to be a massive fire. Tokyo will host the Olympic in 2020 so I'm worried about something like this case after the Olympic in Tokyo. The case is not actually connected with Olympic events but if a memorial place will be destroyed by someone or something, everyone will be disappointed with this. Also the problem is the cigarette butt. The butt thrown away is small but it has sometimes fire. If there were weeds, the fire might burned something around there like this news. Smokers have to care about where they smoke and throw away.

Now i have questions about this article, What are smokers feeling when they thrown away cigarette? and do you know memorial places which was destroyed by someone in japan?