President Donald Trump warned Tuesday that this week will be “very painful” for the U.S. in terms of coronavirus-related casualties with nearly 400,000 people in the country sickened by the virus.  

Speaking at a White House coronavirus task force briefing, the president thanked Americans for following social distancing guidelines to curb the spread of the virus.

“During this painful week, we see glimmers of very, very strong hope. This will be a very painful week…at least part of next week, probably,” said Trump. “If one person dies, it’s a painful week, and we know that’s unfortunately going to happen.

Read more: Trump sees 'glimmers of hope' amid coronavirus pandemic