A Hong Kong university campus under siege for more than a week was a deserted wasteland Saturday, with a handful of protesters holed up in hidden refuges across the trashed grounds, as the city's focus turned to local elections.

The siege neared its end as some protesters at Polytechnic University on the Kowloon Peninsula desperately sought a way out and others vowed not to surrender, days after some of the worst violence since anti-government demonstrations escalated in June.

"If they storm in, there are a lot of places for us to hide," said Sam, a 21-year-old student, who was eating two-minute noodles in the cafeteria, while plotting his escape.