A47 in both directions blocked due to bus fire between The Street (Hockering) and Hall Drive (Honingham).
Norfolk Police are asking for motorists who might have seen a fatal crash on the A47 at Hockering to come forward
A 19-year-old woman and a 48-year-old woman - both from Dereham - died after their Ford Ka was in Collision with a Mercedes CLK at 4pm on Saturday.
The driver of the Mercedes was unhurt.
Officers are particularly keen to speak to passengers on a double decker bus heading from Norwich to Dereham, who may have seen the incident. The bus was not involved in any way.
Slow traffic due to earlier accident on A47 westbound near The Street. All lanes have been re-opened.