MEXICO CITY (AP) — Mexican President Andrés Manuel López Obrador said Sunday he has tested positive for COVID19 and that the symptoms are mild.

Mexicos president, who has been criticized for his handling of his countrys pandemic, said on his official Twitter account that he is under medical treatment.

“I regret to inform you that I am infected with COVID19,” he tweeted. “The symptoms are mild but I am already under medical treatment. As always, I am optimistic. We will all move forward.”

His announcement came shortly after news emerged that he would speak with Russian President Vladimir Putin on Monday about obtaining doses of the Sputnik V COVID19 vaccine.

Mexico Foreign Affairs Secretary Marcelo Ebrard said via Twitter the two leaders would speak about the bilateral relationship and supplying doses of the vaccine.

The vaccine has not been approved for use in Mexico, but the government is desperate to fill supply gaps for the Pfizer vaccine. Mexico has given more than 618,000 vaccine doses.

Mexico has registered nearly 150,000 COVID19 deaths and more than 1.7 million infections. Hospitals in the capital have been near capacity for weeks as a surge of cases followed the holiday season.