Three women were rushed to hospital due to life-threatening injuries on Thursday after being stabbed in separate incidents by an unknown attacker, The Local reported.

The horror attacks, which happened in the southern German city of Nuremberg, have left two women fighting for their lives, and another woman seriously injured.

The attacks happened within a few hours of each other in the St. Johannis district of the Bavarian city. Police said it could not be ruled out that they one perpetrator was behind all three attacks.

All three underwent emergency surgery.

Investigators have been working through the night to piece together what happened, while officers, using police dogs and helicopters, have been scouring the streets for clues.

According to police, there are no indications of a terrorist motive.