A robber threatened a member of staff with a piece of wood at a petrol station in Aintree .
The thug demanded money and caused damage to the shop, at the BP garage in Long Lane, before making off with a quantity of alcohol.
The member of staff was described as being left "shaken" by the ordeal, which took place last night.
A Merseyside police spokesperson said: "At around 9.10pm, patrols were called to the BP garage on Long Lane to reports a man had entered in possession of what was described as a piece of wood.
"He made demands of money and caused damage to the shop, before making off in possession of a quantity of alcohol.
"The offender was described as a white male, around 5ft 10in tall, of slim build with dark, shaven hair.
"He was wearing a green camouflage jacket, dark jeans and dark trainers.
"The member of staff was left shaken by the incident."
CCTV, forensic and witness enquiries are ongoing and anyone with information is asked to contact @MerPolCC, 101 quoting ref. 19100387593 or @CrimestoppersUK.
