Washington - Police in Binghamton, New York on Saturday were piecing together details of a massacre at an immigrant centre that left 14 people dead a day earlier, while a separate bloody incident in Pittsburgh, Pennsylvania left three police officers dead.

Authorities in the upstate New York city of 45,000 officially identified the gunman Saturday as Jiverly A Wong, and said he had once taken classes at the American Civic Association Building, where he killed 13 people before taking his own life.

Washington  - Three police officers were killed while responding to a domestic disturbance call at a home in Pittsburgh, Pennsylvania, on Saturday, officials said.

Two officers were called to a home in the western Pennsylvania city on Saturday morning and were shot when they approached the door. A third officer, who arrived to back up the officers, was also shot and killed.

Miami  - Teenaged talent Victoria Azarenka lifted her third title of 2009 as she stunned world number 1 Serena Williams 6-3, 6-1 on Saturday to win the Miami Masters.

The Arizona-based player from Belarus denied Williams a record- setting sixth trophy in just 72 minutes, breaking five times at the event where the American and her sister Venus have won eight of the last 11 women's titles.

Azarenka played strategically against top seed Williams who came to court with her left thigh heavily strapped and was limited in her range of shot.

Miami  - Teenaged talent Victoria Azarenka stunned world number 1 Serena Williams 6-3, 6-1 on Saturday to lift her first major title with a victory at the Miami Masters.

The Arizona-based player from Belarus denied Williams a record- setting sixth trophy at the event where she and he sister Venus have won eight of the last 11 women's titles.

Azarenka played strategically against top seed Williams who came to court with her left thigh heavily strapped and was limited in her range of shots.