The body of a woman was on Sunday evening found hidden in a sack inside the compound of Tumaini Primary School playground in Umoja estate, Nairobi County.
Buruburu sub county police boss Adamson Bungei said area residents alerted the police of the incident after they found the body.
"We suspect that the woman was killed elsewhere and her body dumped in the school compound," Mr Bungei said.
The police boss said they suspect the murder was as a result of domestic violence.
The police have now appealed to members of the public who might have any information of a woman who recently disappeared around the locality to report to the police.