Two kangaroos have been mutilated and killed on a residential street in Melbourne's southeast, in a sickening case of animal cruelty.

Graphic photographs taken of the remains show one kangaroo had its throat slit and leg hacked off, while the other was disembowelled and a fetus cut out of its womb.

Blood is smeared on the street where two kangaroos were savagely beaten to death. Credit:Robert Bishop

Lysterfield South resident Robert Bishop said he saw a group of young men attacking the kangaroos in the early hours of Wednesday morning.

He called triple zero but the group had left the area by the time officers arrived, leaving the mutilated bodies of the animals on a vacant block of land on Battersby Way.