Prison officers at HMP Altcourse fear a targeted campaign after two cars belonging to staff were torched outside the privately run jail.
The two cars were set alight at 11.45pm on Friday, November 4, sustaining "significant damage". Merseyside Fire & Rescue Service attended the Fazakerley prison and extinguished the fire, with officers from Merseyside Police also attending.
A police spokeswoman said the force has now established that two offenders walked into the carpark from Brookfield Drive and approached the cars before they were set on fire. They then ran off in the same direction.
