As it happened: US school shooting

Key points

  • Twenty children and six adults have been killed in a shooting attack at a primary school in the US state of Connecticut.
  • US media identified the gunman, who was also killed, as Adam Lanza - not his brother Ryan as initially reported.
  • There is also a dead adult - believed to be the gunman's mother - at a second crime scene near the school.
  • President Obama says 'our hearts are broken today' as he pays tribute to the victims

Live text

Reporting:

  • Daniel Nasaw 
  • Penny Spiller 
  • Sarah Bell 
  • Robert Greenall 

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There has been a shooting at a primary school in the US state of Connecticut, which has left as many as 27 people dead, US media is reporting. We will be bringing you live updates on developments.

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Here's what we know so far. The Associated Press is reporting that at least 18 children are among the dead at Sandy Hook Elementary School in Newtown.

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Earlier, the gunman was reported to have been killed and at least three people were taken to hospital.

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A news conference is imminent and we will bring updates once it is under way.

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For the full story of what we know so far, look at our news story here.

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A law enforcement official says the attacker is a 20-year-old man with ties to the Connecticut school, the Associated Press reports.

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Parents leave a staging area

Parents leave a staging area after being reunited with their children at the Sandy Hook Elementary School.

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Police arrived at the school soon after 09:40 local time (14:40 GMT), answering reports that a gunman was in the school's main office and one person had "numerous gunshot wounds".

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One witness speaking to CNN said that shots were heard coming from the hall, saying there "must have been 100 rounds" fired.