Police are investigating an “offensive” tweet posted in relation to the disappearance of three-year-old Mikaeel Kular.
A Police Scotland spokesman said the remark originated from the Greater Manchester area and they are working with local police to find the person responsible.
He added: “Any reports of racist, offensive or abusive comments made online will be thoroughly investigated and those responsible will be brought to justice.
“If you commit an offence, we will investigate it and you will be prosecuted.”
The tweet was brought to police attention by an Edinburgh resident and anyone can report offensive online material by calling 101.
Video: Search for Mikaeel Kular