Sydney business up in flames again

A Sydney fruit warehouse has gone up in flames in a suspected arson attack, the second suspicious fire at the business in about a month.

A fruit shop in Sydney's southwest has been gutted by fire for the second time in just more than a month.

Casula Fruit Land was due to reopen this month after a suspicious fire damaged the business in late April.

However, the business's reopening date looks doubtful after another blaze gutted the fruit and vegetable shop on Saturday morning.

Firefighters were called to the warehouse on the Hume Highway just before 6am.

NSW Fire and Rescue Superintendent Tom Cooper said the store was severely damaged but crews stopped the fire spreading to neighbouring businesses in the shopping complex.

Police Inspector Paul Smith said a car was smashed through the front door to gain entry to the shop before it went up in flames.

He said police were investigating any potential links with Saturday's fire and the blaze in April.