TORONTO -- Ontario health officials have confirmed two more positive cases of COVID-19 on Sunday night, bringing the total number of cases in Ontario to 31.

In a news release issued, health officials said that the first new patient is a woman in her 60s who returned from France on March 2. She presented herself to the Scarborough Health Network - General Site's emergency department in Toronto on Saturday.

The other case involves a man in his 60s who returned from Washington, D.C. on March 3. He presented himself at North York General Hospital's emergency department, also in Toronto, on Saturday.

"In both cases, the hospital took all necessary precautions and followed standard operating procedures, including testing and assessment. The patients have been discharged home where they remain in self-isolation," officials said in a news release.

"Toronto Public Health is actively engaged in contact tracing and case management."

Earlier in the day, officials said a woman in her 40s who returned from Colorado on March 2. She presented herself to the Sunnybrook Health Sciences Centre's emergency department in Toronto.

The patient was discharged home the same day, where she remains in self-isolation, officials said.

"The hospital took all necessary precautions and followed standard operating procedures, including testing and assessment," health officials said in a statement.

Health officials say the virus is not yet circulating locally.