The Police said that the van in which the actress was travelling in had gone down a precipice at Lindula.
The 75-year-old actress was killed in the accident.
The driver of the van has been arrested by the Lindula Police.
According to reports, Wijeratne had been returning to Colombo after recording a teledrama in Nuwara Eliya when the accident took place.
Wijeratne was best known for her roles in Bithu Sithuwam, Karumakkarayo, Ho Gaana Pokuna and Tharaka Mal. (Colombo Gazette)