Police are investigating an incident in which a man collapsed and died in an apartment moments after he had checked in with his girlfriend in Kilimani area, Nairobi.

The 40-year-old man had checked into the apartment along Kindaruma Road before a woman believed to be his girlfriend joined him Monday evening.

The woman however ran out screaming minutes later saying he had collapsed and died.

Police visited the scene with paramedics who confirmed he had died and moved the body to the mortuary pending an autopsy.

Nairobi deputy police boss James Mugera said they are yet to know the cause of the death and an autopsy is planned on the body.