NSW Police are conducting raids on a number of premises across Sydney following a string of gang-related shootings in recent months.

It's believed police have made arrests in relation to the shooting of notorious crime figure Pasquale Barbaro, who was gunned down on an Earlwood street earlier this month.

Witnesses say heavily-armed police stormed an area around the Ibis Hotel in Sydney Olympic Park at about midday on Tuesday and arrested two men.

Footage from Channel Seven appears to show two men handcuffed against the wall and face down on the footpath with their pockets emptied and shoes removed.