EDMONTON -- Edmonton Fire Rescue Services received more than 50 calls in connection to a "strong gas smell" on the south side Monday.

ATCO responded to a plant near 100 Street and 29 Avenue in the morning. Later in the day, the company explained the incident was not a pipeline leak.

"The Edmonton Ethane Extraction Plant was doing scheduled maintenance work and mercaptan got into the system and was vented into the air," ATCO said.

The incident has been resolved.