Detectives, probing the suspected poisoning death of a young Bradford mum, are turning to a social networking site for clues to the tragedy.

Sana Abbasi, 22, who had a three-month-old daughter, was a Facebook user and police are tapping into the site in a bid to contact the dead woman’s family and friends.

They are hoping to gain more of an insight into her isolated lifestyle.

The mother died in Bradford Royal Infirmary last Friday. She had been detained there with an unexplained illness since April 29, shortly after the birth of her daughter.

Initial tests after her death indicated she had been poisoned but police are awaiting the results of full toxicology tests.

A 23-year-old man and a 56-year-old woman from Pollard Park, Bradford – believed to be Sana’s husband and his mother – were arrested on suspicion of murder but have been released on bail pending further inquiries.

Detectives continue to question two further people arrested, a 28-year-old man and 25-year-old woman from Peel Park, Bradford, who are understood to be Sana’s brother-in-law and his wife.

Her baby is now in the care of social services.

Sana, from Rawalpindi, married her Bradford husband in an arranged marriage in Pakistan four years ago.

She came to the UK in December 2007 and had been living in Pollard Park. She was well-educated and was fluent in both Punjabi and English.

Police have refused to comment on Sana’s home life.

But her immediate family, including her parents and two sisters, still live in Pakistan, and it is understood she was desperately lonely and unhappy in Bradford.

She endured a strict and stifling regime from her husband and his family, to such an extent that she was given no privacy and on the rare occasions she was allowed to leave the family home, she was closely chaperoned.

Her every move was watched, including what she did and who she spoke to.

Police believe people in the community will know what happened to Sana and are appealing for anyone who knows how she may have come to harm to contact them.

There is an English phone line to call (01274) 373631, or a Punjabi contact (01274) 373659.

Information can be texted on 07786 200806, or people can ring Crimestoppers, anonymously, on 0800 555 111.