A 30-year-old Mossel Bay man was arrested on Sunday night, after he opened fire on his neighbours in High Street.
According to the police, the suspect shot a man, his wife and their 17-year-old girl daughter with a 9mm pistol.
The shooting took place while the victims were watching television at 7 'o clock in the evening.
The victims were admitted to the Mossel Bay Provincial Hospital where they are being treated for gunshot wounds.
Mossel Bay police confirmed that a case of attempted murder has been open.
The motive for the shooting is not known at this stage. The suspect will appear in court soon.The investigation continues.