Photo taken on March 21, 2020 shows an empty road in Ostia, Rome, Italy. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency. (Photos: Xinhua)

An ambulance is seen in Ostia, Rome, Italy, March 21, 2020. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.

(200321) -- BOLOGNA (ITALY), March 21, 2020 (Xinhua) -- Photo taken on March 21, 2020 shows an empty street in Bologna, Italy. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.

(200321) -- BOLOGNA (ITALY), March 21, 2020 (Xinhua) -- Photo taken on March 21, 2020 shows an empty street in Bologna, Italy. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.

Policemen are on duty in Ostia, Rome, Italy, March 21, 2020. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.

Policemen are seen on a street in Ostia, Rome, Italy, March 21, 2020. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.

People wearing face masks cross a street in Ostia, Rome, Italy, March 21, 2020. Italy reported 6,557 new cases of coronavirus on Saturday, raising the total to 53,578 since the pandemic first broke out in its north on Feb. 21, according to the latest data provided by the Civil Protection Department managing the COVID-19 emergency.