Updated 8.35pm with outages in Siġġiewi, Zebbuġ.
Monday's parliamentary sitting was interrupted on Monday because of a power cut.
The outage happened during question time as PN MP Mark Anthony Sammut was asking questions to Lands Minister Stefan Zrinzo Azzopardi.
The sitting was resumed after a few minutes as a generator kicked in.
It was not immediately clear if the power cut was internal or affected the whole of Valletta but a parliamentary source said the power cut was from the outside mains supply. A reader reported a power cut lasting a few seconds in Hamrun at the same time.
A spokesperson for Enemalta said later that there were no power outages in Valletta. However a cable fault occurred in Msida which is fed from Valletta distribution centre. A voltage disturbance may have affected the parliament's electricity network for a couple of seconds until it was stabilised to normal.
Malta suffered a nation-wide hour-long power outage earlier this month, which was blamed on maintenance work on the Maghtab switchgear of the Malta-Sicily interconnector. According to Enemalta, during testing of the switchgear, a number of distribution feeders tripped.
Outages in Zebbuġ, Siġġiewi
Readers also reported power cuts in parts of Zebbuġ, Siġġiewi on Monday evening.
A Zebbuġ resident said power was lost and returned three times before going out again at about 8.15pm. It returned shortly after.