A 25-year-old man from Zejtun suffered a knife wound and was seriously injured in a fight in Paceville last night, the police said.
The man was involved in an argument with an Eritrean man, 37, at about 4.30am.
A 26-year-old woman from San Gwann, was slightly inured during the argument.
A policeman was also assaulted and slightly injured, the police said.