Police are concerned there may be an injured person in need of medical help after they found pools of blood on the pavement in Gorton.
The blood stains were found near a bus stop on Hyde Road late last night (Thursday).
Officers cordoned off a bus stop, near the B&M store, and a tree further down the road, following the discovery.
A police car was pictured outside the bus stop today (Friday).
Eyewitnesses said they saw blood splattered across the pavement outside the bus stop.
A GMP spokesman said they have been unable to 'to establish where the blood came from'.
They are eager to find out whether the person involved is safe, a GMP spokesman said.
In a statement, a spokesman for the force said: "Shortly before 11.30pm last night (Thursday, October 15), officers on patrol came across several spots of blood on a pavement by a bus stop on Hyde Road, Gorton.
"Following enquiries, officers have been unable to establish where the blood came from.
"Police want to ensure the person injured is safe and well and are working to establish the circumstances."
Anyone with information is asked to call police on 101 quoting incident number 3094 of 15/10/20, or the independent charity Crimestoppers, anonymously, on 0800 555 111.
