Detectives from the Bedfordshire, Cambridgeshire and Hertfordshire Major Crime Unit (MCU) have launched a murder inquiry following the death of a woman in Trent Road, Luton, this afternoon (Nov 18).
Officers were called to the incident at 3.07pm following reports that a female motorist had received stab wounds.
Members of the public had detained a man in connection with the incident at the scene.
The victim, who is in her 70s, was treated by paramedics but was pronounced dead shortly afterwards.