Russian's state nuclear company says five people were killed in Thursday's rocket explosion on a naval test range.
A statement from Rosatom said three people were also injured in the incident.
They say the staff members suffered serious burns in the accident, which has been shrouded by mystery.
On Friday Russian government sources said two people died and six were injured in the Nyonoksa blast.
Hong Kong court finds tycoon Jimmy Lai guilty in landmark security trial
Hong Kong's High Court on Monday found pro-democracy campaigner Jimmy Lai guilty of conspiracy to collude with foreign forces and to publish seditious material under a China-imposed national security law that could see him jailed for life.
School bus accident in Colombia kills 17, injures 20
Seventeen people were killed and 20 injured after a bus carrying school children fell off a cliff in a rural area in northern Colombia, the local governor said on Sunday night.
Australia plans tougher gun laws after father and son kill 15 at Bondi Beach
Australia signalled plans for tougher gun laws on Monday as the country began mourning victims of its worst mass shooting in almost 30 years, in which a father and son duo killed 15 people at Sydney's Bondi Beach.
Police to release man detained over Brown University mass shooting
The man held as a "person of interest" in the Brown University shooting that left two students dead and nine injured will be released from custody, authorities said on Sunday night.
Shooting at Australia's Bondi Beach kills 12
At least 12 people were killed and almost 30 wounded when gunmen opened fire at Sydney's Bondi Beach on Sunday in what Australian police and officials described as a terrorist attack.
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