‘Two Bangladeshis’ killed in Sydney car crash

Two Bangladeshi students are dead and a third is fighting for life after their car "disintegrated" in a high-speed crash in Sydney's southwest.

Police are investigating whether the three men were involved in a street race when their black Toyota smashed into a power pole on Canterbury Road in Belmore about 3.40am on Wednesday.

The 20-year-old driver and a 20-year-old passenger were killed, Yahoo News reported.

A third man - believed to also be 20 - was in an "extremely critical" condition, according to police.

Superintendent Stuart Smith said speed was definitely a factor in the crash.

"The vehicle basically disintegrated when it hit the power pole," he told reporters.

"We've examined a number of other vehicles from that scene and we're not ruling out a street-racing event."

Officers have spoken to the occupants of a white Nissan Skyline which was at the scene.

The Skyline's driver Ahshanul Fakhru denied the cars were racing and said the other driver, a friend, may have been having problems with his car.

"He lost control somehow and he was behind me and I heard him sliding on the road," Mr Fakhru told News Corp.

"Then suddenly, in a second, a big boom."

Police were still trying to locate the victims' families on Wednesday.