A man was seriously injured after he was hit by a lead pipe in Marsalforn on Monday evening, the police said.
The incident took place in Port Street at 8pm, and involved three Somali men.
One of them, aged 24, was hit by a lead pipe during a robbery. He was taken to the Gozo Hospital for treatment.
A second man, also aged 24, was arrested while the police are looking for a third Somali national who is believed to have been involved.