Two teenagers were taken to the hospital following a stabbing incident that occurred during a family gathering in Sydney, after a group of boys disrupted the event.

At approximately 10:15 p.m. last night, a group of five males intruded on a family function at The Sapphire, located on Station Road in Auburn.

During the event, the group attacked a 17-year-old inside the venue, leading one of them to stab him in the leg.

The 17-year-old was treated by paramedics before being taken to Westmead hospital in a stable condition.

Shortly after, a second boy, aged 18, showed up at the same hospital with stab wounds to his lower body, including on his leg.

Police believe he was also at the family function.

There is now a search underway for the five males, who police believe are known to the two victims.

Anyone with information about the alleged attack is urged to contact Crime Stoppers on 1800 333 000.