Radiotherapy has resumed at a cancer hospital in Wirral after some treatments were cancelled because of a computer virus.
About 300 people missed treatment on Monday, after the virus hit software at the Clatterbridge Centre for Oncology in Bebington.
Managers say sessions will be rescheduled with patients as quickly as possible.
The centre treats patients from the North West and the Isle of Man.
The virus has been identified and steps taken to prevent further incidents.
Clatterbridge is one of the largest cancer centres in the UK with nearly 7,000 new patients being registered each year.