"El Salvador decrees state of emergency without congressional approval, Bukele accused of violating law."
To this end, he claimed that there is still a "risk" of spreading the virus. El Salvador recorded 27 deaths and a total of 1,338 infections.
The measure immediately generated questions about its legality and accusations from opposition deputies.
The Attorney General's Office warned on Sunday that it will file an unconstitutionality suit with the Supreme Court.
"All the presidents in the democratic history of our country have had the power to declare a state of emergency and have exercised it, without legislative approval," Bukele wrote on his Twitter account on Sunday.
The measure extends for 30 days the suspension of classes, transit in areas affected by the pandemic, limits the concentration of people and authorizes discretionary management of funds and purchases to deal with the emergency.