New York, New Jersey and Connecticut urged their residents to not travel between the three states as the U.S. Northeast sees a rise in Covid-19 cases, while California said major theme parks including Disneyland would not be opening anytime soon.

U.S. cases of the novel coronavirus crossed 8 million, rising by 1 million in less than a month, as another surge in cases hits the nation at the onset of cooler weather.

The number of new Covid-19 cases rose 11% in the United States last week compared to the previous seven days, with infections spreading rapidly in the Midwest, which reported some of the highest positive test rates, according to a Reuters analysis.

The number of new cases of the novel coronavirus reported in the United States fell 15 percent last week from the previous seven days, and deaths fell for a fourth week in a row, according to a Reuters analysis.

Several states in the U.S. Midwest and Northeast have seen new Covid-19 cases increase for two weeks in a row, though nationally both new infections and deaths last week remained on a downward trend, a Reuters analysis showed.