The father of a 10-year-old girl found dead in Woking last week is being sought by police investigating her murder and is believed to be in Pakistan.

Sara Sharif was found at her home after officers were called from Pakistan by Sara’s father, Urfan Sharif, at around 2.50am on August 10, Surrey Police said. The discovery sparked a murder investigation.

Detective superintendent Mark Chapman, from Surrey Police, said Mr Sharif, his partner, Beinash Batool, and his brother, Faisal Malik, are wanted for questioning in the investigation.

He said it is believed Mr Sharif travelled to Islamabad with Ms Batool and Mr Malik on August 9, a day before Sara’s death was discovered.

They travelled with five children aged between one and 13-years old, he added.

A post-mortem examination, which took place on Tuesday, did not establish the cause of Sara’s death and further tests are being carried out.

But the force said the examination revealed the child had suffered “multiple and extensive” injuries, which are likely to have been caused over a “sustained and extended” period of time.

There is no formal extradition treaty between the UK and Pakistan, but Mr Chapman said that people have been extradited from the Asian country before.

Police are working with the Crown Prosecution Service, Interpol, the National Crime Agency and Foreign Office to carry out their investigation and to liaise with Pakistani authorities.

Officers are not looking to identify anyone else in connection with the investigation, Mr Chapman said.