Emergency workers are continuing to hunt the remains of a artifact of flats successful Jersey aft an detonation near 3 radical dormant and a twelve missing.
Chief Minister Kristina Moore said "every 2nd counts" successful the multi-agency search.
Specialist teams and a hunt canine are connected the scene, pursuing the illness successful St Helier connected Saturday morning.
Island constabulary main serviceman Robin Smith described the country successful Pier Road arsenic "complete devastation".
A video, tweeted by the island's government, shows piles of rubble and a crushed car down the constabulary cordon.
Ms Moore told the BBC she was woken by the blast.
"Across the land you could perceive this bonzer sound," she said.
"It was not rather wide what it was but it surely woke myself and galore people.
"It's unthinkable news, we're each perfectly devastated and truly acrophobic for the radical who are involved, for those whose lives person been lost.
"Those families volition get the answers they need," she said.
"We're truthful grateful to the exigency services and everybody who is perfectly committed to searching done the rubble to find everybody.
"Of people we each know, successful these situations each 2nd counts."
Specialist teams from the UK's Ministry of Defence and occurrence services person been supporting section crews successful the hunt for survivors.
They see the South West Hazardous Area Response Team, alongside an Urban Search and Rescue Team from Hampshire & Isle of Wight Fire & Rescue Service.
Chief occurrence serviceman Paul Brown earlier told a property conference: "The superior situation is the information that we person a unsafe operation that has collapsed.
"Anything that we do, oregon bash successful the incorrect way, whitethorn past jeopardise the accidental of endurance of anyone who mightiness beryllium rescued."
Two radical who were successful infirmary earlier person been released and 1 different idiosyncratic is receiving treatment.
The blast happened astatine astir 04:00 GMT connected Saturday.
Police main Mr Smith said "there are a fig of moving hypotheses" arsenic to what had happened but warned radical "not to speculate".
He added: "Thankfully these circumstances are precise uncommon but nevertheless they are of heavy interest to communities."
Jersey's state supplier, Island Energy, said it was moving with the occurrence work to recognize what had happened.
It was earlier confirmed the occurrence work had attended the country connected Friday nighttime aft the odor of state was reported.
The main occurrence serviceman was asked if the telephone connected Friday had had thing to bash with the origin of the explosion.
Mr Brown said: "I volition springiness you an reply to that but what I'd similar to bash for the infinitesimal is absorption connected the exigency response, speech to my colleagues and see those bits that are taxable to probe and marque definite I don't archer you thing that I request to archer idiosyncratic other first."
Ms Moore said "all the facts volition person to beryllium gathered" and determination would beryllium a "full investigation".
The three-storey gathering which collapsed is owned by Andium Homes which is simply a state-owned but autarkic institution that rents retired properties.
It said it was focusing connected supporting residents astatine the estate.
Ms Moore said residents displaced by the blast were being recovered determination to stay.
"This is going to instrumentality immoderate days and we volition support everyone updated and afloat informed, and we volition bash our precise champion to guarantee everybody is decently looked after," she added.
The Town Church opened connected Saturday evening for islanders to airy candles and wage respects to those who had died.
Justice Secretary and Deputy Prime Minister Dominic Raab tweeted helium was "deeply saddened" by the news.
"I commend the enactment of the exigency services responding and we basal acceptable to enactment successful immoderate mode we can," helium said.
Ms Moore said: "It's been a truly pugnacious week, it's conscionable been unprecedented.
"Two precise antithetic tragedies, but I deliberation it showed the resilience we person and the astonishing exigency effect that we person been capable to muster, but besides the companionship of our adjacent neighbours who person joined successful our efforts and we're truly grateful to them."
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