An area around St Stephens Road has been cordoned off while an investigation takes place.
A 23-year-old woman and a 34-year-old man have been arrested and remain in police custody.
A Leicestershire Police spokesman said no details of the victim are being released at this time.
Det Insp Simon Shuttleworth said: "If you were in the St Stephens Road area during the evening of Tuesday, February 17 and into the early hours of Wednesday, February 18, and saw any suspicious behaviour we would like to hear from you."
Two people have been arrested on suspicion of murder after police were called to a property in Leicester on Saturday.