A Brighton jewellery store has been attacked by a group of youths in an unsuccessful daylight robbery.

Police swarmed the Holloway Diamonds store on the corner of Church and Carpenter streets after the incident about 11am.

This is the second Holloway Diamonds store to be targeted by thieves in less than a month and the third time the franchise has been robbed this year.

The Holloway Diamonds store in Canterbury has been robbed by men armed with machetes twice already this year – once on January 12 and again on March 24.