Heartbreaking details emerge about final moments of Aussie woman Rehana Parvin found dead overseas after disappearing for two months

An Australian woman found dead overseas after disappearing for two months had been hospitalized weeks earlier after suffering a miscarriage.

Rehana Parvin, 37, was found dead in Bangladesh in September after traveling there from Queensland with her teenage daughter in June to manage her property.

It emerged on Sunday that Ms Parvin was admitted to hospital after suffering a miscarriage on July 3 and that was the last time her family heard from her.

“She was four months pregnant,” her sister Tania Parvin told the channel ABC.

Rehana was initially treated at the Nawabganj Upazila Health Complex and later transferred to the Dhaka Medical College Hospital, said Nur Mohammad Khan, a police officer who investigated her death.

The mother-of-five was found buried next to a septic tank on her sister-in-law’s property on September 12.

In Bangladesh, it was reported that at the time her body was discovered, much of the local property she owned with her husband Awlad Hossain was in Ms Parvin’s name.

Mr Hossain, 48, had traveled to Bangladesh on June 29 and returned to Australia on July 13.

There has been a huge twist in the investigation into the murder of Australian woman Rehana Parvin (pictured) abroad

The Assistant Chief Inspector in charge of the investigation said police have applied for an arrest warrant and are seeking Mr Hossain’s extradition from Australia to Bangladesh.

Ms Parvin had spent a night with her parents before traveling to her in-laws after traveling to her home country in June.

Her mother reported her missing three days later.

Daily Mail Australia is not suggesting Mr Hossain had any involvement in his wife’s death, only that Bangladeshi police have applied for an arrest warrant.

Ms Parvin’s mother, Irean Akter, said in September that she had “worked hard to educate my daughter and send her to Australia, where she became a citizen.”

“My daughter has earned and acquired property in Australia,” she said.

“I need help, I need good action,” Ms. Akter said. ‘Rehana had five children. Five children lost their mothers.’

Although there is no extradition treaty between Bangladesh and Australia, there is a mechanism through which people can be extradited between Commonwealth countries, of which both countries are part.

Mr. Hossain’s sister, Papia Akhter, and Amzad Hossain, a man from the village where Ms. Parvin grew up, were arrested and admitted knowledge of Ms. Parvin’s disappearance, local authorities said.

Ms Parvin's estranged husband, Awlad Hossain (pictured), arrived back in Australia on July 13

Ms Parvin’s estranged husband, Awlad Hossain (pictured), arrived back in Australia on July 13

Khan, the police officer, said Ms Parvin died between 8pm and 10pm on July 5 at Papia Akhter’s home, where her body was found more than two months later.

Mr Khan told it ABC News that Mrs. Pavin “was killed by… pressing a pillow on the face.”

Ms Parvin and Mr Hossain married in Bangladesh before moving to Australia almost 20 years ago.

They owned several properties in the Lockyer Valley in south-east Queensland, and Ms Parvin also owned land near Tara and in Bangladesh.

Mr Hossain also owned a house in the Ipswich suburb of Redbank Plains.

The Australian Federal Police said it will “provide an update in due course.”