A GP surgery that provides treatment to about 5,600 patients has been placed in special measures by a regulator.
London Street Surgery, in Reading, Berkshire, was found to have "significant backlogs of test results and care-related tasks".
The Care Quality Commission (CQC) found there was "poor identification of risks to patients" during an inspection in April.
The surgery has been approached for comment.
The regulator rated the surgery's safety and leadership as inadequate, and said it had insufficient processes to ensure services' safety and effectiveness.