One section of a hospital in Hong Kong was temporarily evacuated following an explosion on Monday.
According to reports, a handful of anti-government protesters targetted the facility that the hospital had set up as a quarantine for coronavirus patients.
No one was injured in the incident.
In a statement, the police said the device exploded in a toilet cubicle at the Caritas Medical Centre at about 2:30 am (local time).
The motive behind the explosion is still unclear.
It comes after thousands urged Hong Kong to shut the border with the mainland to prevent the coronavirus from spreading.
13 killed in explosion at Qatar's Ras Laffan LNG site
UK's Starmer resigns, paving way for orderly transfer of power
Israel says military will maintain security zone in southern Lebanon
Fire at coaching centre in India's Lucknow kills at least 15
US opens probe of fatal Tesla crash into Texas home
