A woman made off with valuable items from an apartment after locking the tenant in the balcony, the police said.
The woman was later arrested.
The robbery took place in Giacint Tua Street, Gzira, at 9am.
The tenant, a 28-year-old man from Nepal, responded to a knock on the door and the woman, armed with a knife, barged in.
She locked the tenant in the balcony and made off with valuable objects.
The police later said that the woman, aged 36, was arrested.