Alison McBlain: Two murder arrests over pavement death
A further two people have been arrested on suspicion of murdering a woman who was struck by a car that mounted a pavement.
Alison McBlain was struck by a Fiat Punto in Blackburn, Lancashire, on 19 November and died later in hospital. A 26-year-old was also seriously injured.
A 62-year-old man and a woman, 27, were held on suspicion of two counts of conspiracy to murder.
Four people including a boy, 16, have previously been charged with murder.
They have also been charged with attempted murder.
A 25-year-old man has also been arrested on suspicion of assisting an offender and arson, police said.
The three most recent arrests were made at addresses in Clayton-le-Moors and Preston.
Lancashire Police said the car failed to stop after hitting Ms McBlaine and the man.
It was later found on Lower Hollin Bank Street where attempts had been made to set it on on fire.