UPDATE April 2, 2018: Body found in washroom wall was not victim of foul play, police say

Police are investigating after the body of a man was discovered inside a wall in a public washroom at a mall in downtown Calgary on Monday.

The discovery was made about 9:30 a.m. in the fourth floor washroom at the Core shopping centre at Seventh Avenue and Third Street S.W., police said.

Calgary police spokesperson Emma Poole said a maintenance worker was called in the morning to fix a toilet that wouldn't flush in the women's washroom.

"If you were to look at the toilet, there's a panel behind it so that when people move, it would automatically flush," she said.

A Calgary firefighter walks through the food court in the Core shopping centre where a body was found behind a washroom wall. (Anis Heydari/CBC)

"When they removed that panel, they found a deceased person behind that wall."

How did someone get inside wall?

The Calgary Fire Department helped remove the body, and the provincial medical examiner was called to the scene.

Police said there was nothing to immediately indicate whether the death was suspicious.

"Despite the circumstances of where the body was located, investigators do not suspect foul play and the death remains classified as undetermined," police said in a release.

Poole said it's possible someone crawling through a vent or duct fell from above and got stuck in the wall.

"That would be the most logical at this point … that it was from above," she said.

"So that is obviously something they would be looking at is someone crawling through the ventilation system."