Two men arrested by police looking into "vile" racist abuse in university halls have been released.
Rufaro Chisango tweeted a video of the abuse, which included "we hate the blacks", while in her room at Nottingham Trent University (NTU) accommodation on Wednesday.
Two 18-year-old men were held on suspicion of racially aggravated public order offences .
An 18-year-old woman was interviewed in connection with the incident.
Nottinghamshire Police said she "attended a voluntary interview and was questioned under caution". All three people have been released pending further inquires.
The university said an unspecified number of "suspected perpetrators" had been suspended after the abuse was reported to security staff by Ms Chisango on Tuesday.
Prof Eunice Simmons, deputy vice chancellor at NTU, admitted: "There was a significant delay in dealing with this incident and that is completely unacceptable.
"We have apologised to the student concerned and are looking at how this could have possibly slipped through the net.
"This kind of vile behaviour will not be tolerated at NTU."
The university has offered Ms Chisango alternative accommodation, Prof Simmons added.
The National Union of Students, representing students of African, Arab, Asian and Caribbean descent, said these experiences are "common" across the country and it has been "going on for decades".
A Nottinghamshire Police spokesperson said: "We treat hate crime as a priority."