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.
Nepal and China resume flood rescue after lake threat eases, death toll tops 500
Nepal and China resumed rescue operations that had been suspended briefly in the flood-hit Himalayas on Friday after risks from an overflowing lake were found to be manageable, easing fears of fresh devastation.
King Harald, Norway's reform-minded head of state, dies at 89
Norway's King Harald, a reformer who emerged from the shadow of his well-loved, extrovert father over more than three decades on the throne, died on Friday at the age of 89, the royal palace said, at a time of multiple crises for the Norwegian royal family.
Police detain more than 300 in Indonesia's capital after unrest following protest
Police in the Indonesian capital Jakarta have detained over 300 people for questioning and named dozens of suspects following street protests that had turned into late-night rioting, officials said on Friday.
Russia devastates Ukrainian food storage in stepped up attacks on logistics
Recent Russian air attacks have destroyed around 90 per cent of retailers' food logistics, Kyiv's agricultural minister said on Friday, revealing the scope of Moscow's mounting attacks on Ukrainian logistics.
Trump renames Lake Ontario as 'Lake America' amid Canada trade war
US President Donald Trump has renamed Lake Ontario "Lake America" on Thursday, escalating a feud with Canada that has already spawned tariffs on tens of billions of dollars in cross-border trade.
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