The case of Toronto’s phantom stench has been solved.

After receiving a handful of calls regarding a manure-like smell Friday, the Ministry of the Environment dispatched an officer to search Toronto for the smelly source.

The Royal Winter Fair was an easy suspect, but was dismissed early on because the odour permeated a wide geographical area, including Toronto, Mississauga and Vaughan.

“Because of the widespread nature of calls yesterday, we did not suspect a single source,” Ministry of the Environment spokesperson Kate Jordan said Saturday.

It wasn’t long before the investigator made scents of the matter: rotting leaves.

The warm Friday sun beat down on piles of once-beautiful leaves, releasing an unavoidable stink across the city, Jordan said. The phenomenon, while not entirely common, has been known to happen.

It even spawned a hashtag — #TOpoo — that had Twitter users guessing the cause of the awful smell.

”Does anyone else smell manure in Toronto? Where are the cows?” tweeted one user.

“God has farted o’er the GTA,” said another.

In a mixed blessing, colder weather Saturday put a plug on the smell. The Ministry of the Environment didn’t receive any complaints about the odour after Friday.