UPDATE (7:15 a.m.) - Power officials said power was restored to the remaining areas at about 2 a.m. on Monday.
PG&E said the outage seemed to be caused caused by an equipment issue.
UPDATE (8:27 p.m.): Power has been restored for more than 4,600 of the initially affected customers. As of 8:27 p.m., there are still 300 residents in the area without power.
UPDATE (7:14 p.m.): The number of affected customers has been reduced to 3,505. The PG&E website says they are currently assessing the cause at the outage location.
The estimated restoration time remains at 9 p.m.
(6:25 p.m.) A PG&E outage in Morro Bay has left 4,978 customers without power Sunday evening, according to the PG&E outage map.
The power reportedly went out around 5:25 p.m.
It is estimated to be restored by 9 p.m.
PG&E is investigating the cause of the outage.
More information will be given on as soon as it becomes available.