Three men remain in police custody tonight as investigations into the death of a man and woman in separate incidents last night continue.
Residents have told of how their 'normal' areas were rocked by tragedy
Detectives say the incident is not connected to a second murder inquiry launched in West Norfolk last night.
Witnesses saw an arrest outside an address in Downham.
A man was arrested on suspicion of murder and causing death by dangerous driving.
Raiders smashed in the back door of a village home and threatened residents with a knife in a 'terrifying' attack.
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Police say thousands of pounds worth of stock was recovered during the operation.
Police fear some of the items may have been sold online.
A group of youths was also dispersed amid allegations of anti-social behaviour in Lynn Town Centre, say police.
The woman is due back in court later this month accused of stealing goods worth more than £11,000.
A murder rocked a community to its core in the 1970s - and the mystery of what happened to Gordon Snowden still remains.
Norfolk Constabulary are especially keen to hear from degree holder applicants, women and those who identify as LGBT+ for their online workshops.
A man who was found with serious injuries following an incident earlier this week remains in hospital.
Police are linking last night's ram raid with at least three others including one which happened just hours later.