Police and firefighters were called after a woman climbed up some scaffolding.
The woman climbed up the Phase One hostel in Oriental Place, Brighton, at 1.15pm on Friday, November 16.
A Sussex Police spokesman said: “About half an hour later she came down and has been arrested.
“Inquiries are at an early stage and no further information is immediately available.”
See the latest news headlines from The Argus:
- Man arrested on suspicion of murder after body discovered in flat
- Road closed after serious crash involving Vauxhall Corsa and parked vehicle
- Police issue safety warning after mystery motorist playing guitar caught on camera
- ‘Beautiful brave Sam’ loses her battle for life
- Leader of Hastings Borough Council is in coma after being taken ill