Six suspected thugs were on Sunday morning shot dead in in Kifarage Dandora area.
The gangsters reportedly hijacked a motorbike, tied the rider and reportedly raped the woman the rider was carrying.
Police say the lady is currently undergoing treatment and is in a critical condition.
Police managed to trace the thugs using a tracking device that was put on the motorbike.
Kifarage area has been mapped out as a criminal hideout by suspected gangsters.
According to the police dangerous criminals terrorizing people in Dandora and Kasarani use the area as a hideout.
“This is one area that has been giving us headache, its a well known place for harbouring dangerous criminals who normally terrorise innocent people within Dandora and Kasarani,” said the police.