Tight security is placed around Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)

Police officers are on duty in front of Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)

A resident is seen at Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)

A resident is seen at Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)

Residents are seen at Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)

A resident is seen at Hal Far open center in Birzebbuga, Malta, April 6, 2020. All the 1,000 residents at one of Malta's open centers have been placed on a mandatory 14-day lockdown after eight of them tested positive for coronavirus, Health Minister Chris Fearne announced on Sunday. He said the decision was taken following a risk assessment which revealed that the danger that the virus is passed to people outside the center would grow unless it is contained. (Photo by Jonathan Borg/Xinhua)