A school community is in shock after a four-year-old child died during a recess break at Aberdeen Public School on Monday, CBC News has learned.

"Our thoughts are with her family, her classmates and members of the school community who will remember (her) as a clever, happy child who celebrated life and loved her family and friends," a letter from the principal of the school to parents and guardians states.

Police, firefighters and paramedics were called to the school, on Grey Street, at around 2:20 p.m. on Monday afternoon.

"They were called there for a child without vital signs," said acting Deputy Fire Chief Jack Burt.

Paramedics confirmed they also responded to a call at the school.

In the letter going home to parents today, Principal Christine Masterson says the child "collapsed on the playground without warning at 2 p.m. yesterday during afternoon nutrition break. Staff immediately called police and ambulance, and she was rushed to hospital where she later died."

"The cause of death is still under investigation by the coroner's office, however, it does not appear suspicious. We are assisting the coroner with their investigation at this time," a spokesperson for London police said.

The Office of the Chief Coroner confirmed it was investigating the death.

Counsellors from the Thames Valley District School Board's Traumatic Response team were on hand Monday to support children and staff.

The school is also offering to provide parents and guardians with additional materials for conversations with children at home.