A Toronto police officer died while on the job Thursday morning, the service says, with early evidence suggesting the “cause of death may be medical.”

In a statement posted to social media, police said they are in the process of notifying the officer’s family and that more information will be made available in the coming hours.

“Our heartfelt thoughts are with the officer’s loved ones, friends, and colleagues during this incredibly difficult time,” police said.

The officer was helping execute a search warrant at a highrise on Steeles Avenue W. in North York at the time.

The Toronto Police Association (TPA) said the operation was part of an investigation in 31 Division.

“The information we have at this time indicates that the cause of death is believed to be medical, but further investigation is ongoing,” the TPA said.

Police are set to hold a news conference beginning at around 1:30 p.m. ET.

Toronto Mayor Olivia Chow said she was “heartbroken” by the officer’s death, adding she has been in touch with Chief Myron Demkiw.

“I understand the circumstances are still being confirmed and investigated … These are still early hours,” Chow said.

“We deeply appreciate the work of our officers and the work they do every day for our city.”

Ontario Premier Doug Ford said he was “deeply saddened” to hear of the officer’s death.

“My condolences go out to the family and loved ones of the officer, as well as all members of the [Toronto Police Service],” Ford said on X, formerly Twitter.