“The emergency services were notified immediately and the girl was taken to the hospital,” a spokesperson with Brussels prosecutor’s office told Bruzz.
The woman, aged 20, was in a critical condition at the time of her hospitalisation and had to be put into an induced coma.
On Monday, she was taken out of the coma and continues to be treated for multiple fractures, including a broken skull.
Around 15 people were present at the party, which took place on the day of the Saint-V, a popular day of celebration among university students in Brussels, created as a counter-celebration to mock the Saint-Nicolas festivities of rival Catholic universities.
They were taken in for interrogation but police have said that the initial questionings do not suggest that a third party was involved in the woman’s fall.