Police are investigating an attack on the family of murdered Cheshire teenager Shafilea Ahmed.
Three armed men broke into the family home on Liverpool Road in Great Sankey, Warrington, on Wednesday night.
The gang tied up her mother and siblings in an apparent robbery, but police said one of the victims managed to break free and raise the alarm.
A 22-year-old woman has been arrested on suspicion of conspiracy to rob and will be questioned by detectives later.
Police said a 20-year-old man and a 19-year-old woman received minor injuries during the incident but did not require hospital treatment.
Shafilea, 17, went missing from home in Warrington in September 2003.
Her body was found in the River Kent in Cumbria in January 2004.
No-one has ever been charged with her murder.