A murder inquiry has begun after the body of a female student was found at a university halls of residence.
Two men have been arrested over Rebecca Love's death
Officers were called to the University of Hull halls at The Lawns, Cottingham, East Yorkshire, after Rebecca Love's family could not contact her.
Humberside Police said the 26-year-old had been assaulted and she probably knew her killer, although it did not mean the attacker was a fellow student.
A man, aged 32, was released by police but a 20-year-old man is still held.
Det Ch Insp Tony Garton, who is leading the inquiry, said: "We appear to be dealing with a fairly prolonged physical attack.
"At the moment it would appear that Rebecca knew the person that she let into her room to attack her.
"There are no signs of forced entry to the room or the hall, so it would appear that there was some form of consent."
He said it did not mean that another student was involved and said it was crucial they established what Miss Love's movements were during recent days.
Detectives have established that Miss Love was at an HSBC cash machine on the corner of Hallgate and King Street in Cottingham on Tuesday evening at 1941 BST.
She also visited an off-licence, police said.
Students reported seeing Miss Love at The Lawns on Wednesday.
Miss Love's mother, from Rotherham, told police she had last spoken to her daughter on Wednesday afternoon.
They had arranged to speak again on Thursday but despite calling her she was unable to get in touch.
Officers are speaking to her friends and neighbouring students, her tutors and other university staff.
The university offered its "deepest condolences" to the family of Miss Love.
A spokesman said: "Rebecca was studying a foundation year in marine biology, which was taught at Hull College, with the intention of continuing on to a three year degree in Marine Biology at the University of Hull.
"The university is co-operating fully with the ongoing police investigation.
"The safety and well-being of our students is of paramount importance and the University is supporting the student body at this difficult time."