Apple is donating millions of masks to medical personnel across the U.S. and Europe as health professionals grapple with the coronavirus pandemic.

As the pandemic continues to spread across the U.S., officials have been calling on other industries to help create or provide medical products. Kentucky bourbon makers are making hand sanitizer and auto makers have been called on to help make ventilators.

In an announcement on Twitter, Apple CEO Tim Cook said the company is donating millions of masks to health professionals.

Our teams at Apple have been working to help source supplies for healthcare providers fighting COVID-19. We’re donating millions of masks for health professionals in the US and Europe. To every one of the heroes on the front lines, we thank you.

— Tim Cook (@tim_cook) 3/21/20

Cook doesn’t elaborate on how the company acquired the masks, but Apple’s donation is sure to be appreciated by medical staff on both continents.