Sydney shooting spree terrifies residents

Three separate Sydney shootings have left police baffled and residents terrified, with no apparent links between the attacks.

Bullets tore through Jawhara Obeid's Bankstown home, going through three walls and ricocheting around the lounge room about 12.50am on Tuesday.

Hours earlier, there was a shooting at the same Ryde location in which a Hells Angel associate was allegedly involved in the fire bombing of a car in February.

The third set of shootings was in Greenacre about 3.15am on Tuesday near a housing complex notorious for drug deals, according to local residents.

Police say it's too early to say whether there are any bikie links to the attacks.

"Quite frankly at the moment it's got us a little bit baffled," Bankstown Chief Inspector Glen Fitzgerald said.

Ms Obeid said she had only moved into the Bankstown home five weeks ago with her husband and four-year-old daughter.

"My husband heard a loud noise ... he jumped in bed and started screaming," she said in her home, which was scarred with bullet holes.

"We're still in shock.

"We can't believe this is happening to us."

Police believe that shooting was a case of mistaken identity.

"It's always been a concern that with any type of shooting that innocent people will be involved," Insp Fitzgerald said.

"If any homework was done in relation to the shootings, it wasn't done well."

Meanwhile, in Greenacre a shaking neighbour blamed drug deals in a nearby street.

"I can't handle the stress any more, I suffer from anxiety attacks," she said.

"I have to lock (my daughter) in the house.

"I was approved for a housing commission transfer but they don't have anything for me.

"I'm so scared."

Another neighbour, 87, said police frequented the street regularly on Saturday nights and it was the fourth or fifth shooting in the past 10 years.

Unlike the south western Sydney attacks, police believe the Ryde shots were targeted.

Two men were seen running from the house on Monday night.

Three men, all related, were inside the home when five shots were fired, including a bullet that penetrated the lounge room, police say.

A bikie feud was behind the February fire bombing in northwest Ryde, with the attack used to intimidate a witness at a trial linked to several 2012 shootings between the then-warring Nomad and Hells Angels gangs, police said at the time.

A 20-year-old Hells Angel associate was charged over the fire bombing, which destroyed a car and damaged parts of the Ryde home.