A post mortem examination had revealed no evidence that former movie star Pawana Chanachit was murdered, Pol Col Pornchai Suthirakhun, deputy chief of the Institute of Forensic Medicine of the Police General Hospital, said on Tuesday.
Pol Col Pornchai said minor scratches were found on her face and body, but they were unlikely to have caused her death.
There were several bruises, which could have been caused by body contacts with any object, on the body and minor minor injuries at the nape of her neck and on her limbs.
Water was found in the lungs, and this was an important indication that she drowned.
At this stage, there were no indications that Pawana, 69, was killed, he said.
Doctors had gathered some samples from her body for a DNA test to establish if anyone else was involved in her death. Results of the tests would be known in two weeks, Pol Col Pornchai said.
Pol Col Pornchai said it was possible that Pawana had fainted and drowned, since she had a medical record of treatment for diabetes, heart disease, high blood pressure and high blood cholesterol.
The former movie star, know as the "Pearl of Asia". Her body was found around 3am on Sunday in a pond near her home in Nakhon Chaisi district ofNakhon Pathom. Pawana was her stage name. She was born Aranyaporn Laosaengthong.
Waipot Laosaengthong, Pawana's younger brother, said he still believed his sister had been murdered by a person close to her.
He said that person might have hired a Burmese worker in the house to kill her and dump the body in the pond.
Pawana's wealth was the possible motive, Mr Waipot said.
Mr Waipot said he had evidence to back his assumption, but would rather allow police to complete their investigation before revealing it.
She was initially believed to have falled into the pond and drowned, but police said on Monday they had not ruled out the possibility of murder, as alleged by her brother.
