Armed police and dogs were called to a house in Gorleston after a woman was allegedly threatened, pushed and spat at.
Police attended the incident in Elder Green, Gorleston at just after 6pm on Monday, April 8.
A spokesman for Norfolk Police said it was alleged a knife was seen during the incident.
A man in his 50s from the Gorleston area has been arrested on suspicion of affray and remains in custody.
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