A woman has been charged with the murder of a five-year-old boy.
Lincoln Button Died at an address in Windstar Drive. At South Ockendon, Essex, on 15 December.
A woman was taken to hospital for treatment and was arrested and questioned when her condition improved.
Claire Button, 35, of Windstar Drive, South Ockendon, has been charged with murder and is due to appear before magistrates in Southend on Monday.
DETCH Insp Alan Blakeslee, from Essex Police, said: “This is proving to be a very complex investigation into the death of a young child.
“My thoughts and those of the entire investigative team are with Lincoln Button’s family as we continue to support them during this terrible time.
“Getting to this stage in our investigation has required a great deal of hard work and dedication by the investigative team and I would continue to urge the public to refrain from speculating about the circumstances surrounding this case.”
In a statement released last week, Bonnygate Primary School said it was working closely with authorities as Lincoln’s death was investigated.
“His love, laughter and affection for the school will be remembered and greatly missed,” a spokesman said.
“The school’s priority is to support those within the community who need help coping with this tragic loss.”
His family members also said in a statement: “Link was a sweet, loving, sweet, beautiful young soul who was loved by all and will be greatly missed every day.”