The US reported its highest one-day increase in new COVID-19 cases on Thursday as authorities across Europe urgeD people to respect bans on public gatherings following a string of illegal parties.
According to Johns Hopkins University, 39,972 new cases of COVID-19 were recorded in the US on June 25, the highest daily number observed in the country so far.
The US is the most severely-hit country in the world with more than 2.4 million confirmed infections and over 124,000 deaths recorded.
The recent surge in cases has led some states to tighten restrictions again.
In Florida, which registered a record 9,000 new cases on Friday, bars are now banned from serving alcohol while in Texas, Governor Greg Abbott has paused reopening plans.
Bars that make half of their income from the sale of alcohol are required to close at midnight on Friday while restaurants may remain open but a reduced capacity.