The U.S. has reported over 1.2 million coronavirus cases as of Tuesday, Johns Hopkins University's latest tally showed.

The country's death toll from COVID-19 rose to 70,646.

New York remains the hardest-hit state, with 321,192 total confirmed cases and 25,073 deaths. 

The first known death caused by the coronavirus in Chicago was reported on March 16, but the Cook County Medical Examiner's office is planning to review a "handful" of cases that may have died from COVID-19 as early back as in November.

Local officials said that they will look into these deaths involving heart attacks and pneumonia starting in late fall last year.

In the state of Ohio, 3,300 inmates, or over 70 percent of the total prisoners kept in two state prison facilities have tested positive for the coronavirus, causing at least 33 deaths. Meanwhile, 276 workers at these facilities have also tested positive for the virus.