On Thursday, Sante Publique, the French national health agency, said that the country had confirmed more than 16,000 new coronavirus cases within the past 24 hours marking the largest daily increase since the start of the outbreak.
"If we do nothing, we may face the same situation as in March. The further deterioration of the situation may mean the second quarantine," Castex said on late Thursday, as quoted by Figaro newspaper.
The first quarantine was introduced in France on 17 March. Starting from 11 May, France began to gradually ease the coronavirus-linked restrictions.
The World Health Organization declared the COVID-19 outbreak a pandemic on 11 March. To date, more than 32 million people have been infected with the coronavirus worldwide, with over 979,000 fatalities, according to Johns Hopkins University.
France has confirmed over 536,000 coronavirus cases so far, with more than 31,000 fatalities.