Four youths have been arrested in connection with two knife point robberies at a mini mart in the Avenham area of Preston yesterday.
The youths, who live locally, are aged 12, 13, 14 and 16 years of age.
The shopkeeper was left terrified after two knife weilding robbers targeted the Avenham Lane shop twice, at 1pm and 7pm.
During the first robbery the two youths made off with some cigerettes and during the second incident they escaped with a small amount of cash.
Police believe the two incidents are linked. The youths have been released on police bail.